Find the total cost for three adults and five students

Find the total cost for three adults and five students

The frequency of vibrations of air in an organ pipe is inversely proportional to the length of the pipe. If a pipe 2 feet long vibrates 256 times per second. How may times does an 8-foot pipe vibrate...

"How many gallons of vream containing 25% butter fat and milk containing 3 1/2 butter fat must be mixed to obtain 50 gallons of cream containing 12 1/2 butter fat?"

How many terms are in the expression (-9/7)x2 negative 9/7 times x squared?

how do you write this as an equation and then solve 5 less than the product of 9 and y is 40

I need help with this question in my math class about word problem. This is my last question and i need to do well on it, thanks.

7,16,8,27,9 What is the next number in this sequence? 2,7,26,101,400 What is the next number in this sequence? 7,21,8,72,9 What is the next number in this sequence?

I need to know how you would write x/4 as an algebraic expression

Please help with question

Mitchell invested part of his $13,000 advance at 5% annual simple interest and the rest at 9% annual simple interest. If his total yearly interest from both accounts was $930, find the amount invested...

How do I solve this problem? I am at a total loss as where to start.

3,-6,12,4,20 What number is next in this sequence

Write a trinomial expression that is equivalent to (2x+5)(3x-2)

I thought I was answering it correctialy know im not sure what I'm doing wrong

Really need help with this, and by end of day today would be best The total imports of petroleum ( in millions of barrels per day) in a given year is approximated by the polynomial...

order pair for y=-x+9

Simplified, Multiplying by a monomial

one day the school store sells a total of 142 candy bars and bags of chips and makes a total of $194. If candy bars cost $1.50 each, and chips cost $1 each how many of each did they sel

Including a 5% sales tax, an inn charges $ 172.20 per night. Find the inn's nightly oat before tax is added.

Solve for x in the following equition x/2 - x/3 =x/4-1