Yesterday, I bought two cups of espresso and one biscotti for $4.40. This morning, i bought one cup of espresso and two biscotti for $3.55. What does an espresso cost

Yesterday, I bought two cups of espresso and one biscotti for $4.40. This morning, i bought one cup of espresso and two biscotti for $3.55. What does an espresso cost

Last year, the IRS audited 10,000 tax returns of which 500 were incorrect. Based on the information, how many of the 250,000,000 tax returns filed each year are probably incorrect

If the value of 10 ounces of gold is d dollars and an ounce of gold is equivilant to s ounces of silver, what is the value, in dollars, of 3 ounces of silver?

The relationship between the repeat re in degrees Celsius C and degrees Fahrenheit F is given by the equation C=5/9(F-32). Solve for F in terms of C.

The surface area of a right circular cylinder in given by the formula SA= 2(pi)r[r+h]. Solve for the height h in the formula as a function of the surface are and radius.

At Technic Music, the regular price of a music CD is d dollars. If all the music CDs are discounted 50% off regular price, how many CDs can Brian purchase if he has r dollars?

if c construction workers can bulid a house in d days, how many days will it take m construction workers to build three identical houses? Assume the work rate for each construction worker is the same...

Going against the wind, a cyclist was able to reach 60 km in a matter of 4 hours. With the wind, she was able to cover 150 km in 6 hours. What would be the speed of the cyclist in calm air and how...

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A*B*6 is A three digit number and is divisible by 9,5 and 7. What two digit number is A*B?

l. What is the cost of mailing a package if the rates is 30 cents for each ounce and $1.25 for handling? 2. An architectural plan suggests that the length of an entrance way should be one-fourth...

I am not sure how to set up the story problem

-Use unit analysis to represent the amount of paid time off Jared gets in a year after working for w weeks, and identify the units for the expression. -Write an algebraic...

there are 23 total people. 16 dollars for adults. 3 for children. 147 dollars collected. how many children and how many adults?

Smith family has 3 people and all 3 work to earn income. The family has a total annual income of $151,000. Mr smith earns $3000 more than twice the amount of his son. Mrs smith earns $5000 less than...

Big Ideas Math saids that I am wrong even though I think I am right.

Chris can be paid in one of two ways. Plan A is a salary of $350 per month, plus a commission of 9% of gross sales. Plan B is a salary of $690 per month, plus a commission of 4% of gross sales. For...

The equation p=1+d/33 gives the pressure, P, in atmospheres (atm) at a depth of d feet n the sea. For what depths d is the pressure of at least 5 am and at most 8 atm?

A group can charter a particular aircraft at a fixed total cost. If 36 people charter the aircraft rather than 40 people, then the cost per person is greater by $12. a) What is the...

Two cars started from the same point and traveled on a straight course in opposite directions for 2 hours, at which time they were 208 miles apart. If one car traveled, on average, 8 miles per hour...