Jenny withdrew all her money from a bank. after giving 10% to her sister, she spend 1/3 of what was left on a book and then gave remaining $72 to a animal shelter. how much did Jenny's sister get...

Sean has three blue blocks and six pink blocks that weight 14 ounces altogether. Ayla has three pink blocks and they weigh the same as two blue blocks. How much does each block weight? Set up...

We just learned Coterminal Angles today and i'm not sure how to make sure they are equal.
The question is 31pi divided by 18 and the other half of it is negative 67pi divided by 18.. I have to...

The manager of a farmer's market has 450 lb of grain that costs $1.60 per pound. How many pounds of meal costing $0.80 per pound should be mixed with the 450 lb of grain to produce a mixture that...

THe weight of a synthetic ball varies directly with the cube of its radius. A ball with a radius of 2 inches weights 0.80 pounds. Find the weight of a ball of the same material with a 3 inch radius...

Given the equation -5 (x - 2)' -1= ,
a. Identify the vertex.
b. Identify the axis of the symmetry.
c. Identify the direction of the graph (whether it opens up or down).

A person invest $4000 in an account at 10% interest compounded annually. When will the value of the investment be double? Explain why it will take less than 10 yrs, even though the rate is 10%?

Hi, i have 2 application questions about rational inequalities that i hope you will help me solve and explain to me how are they solved:
1)When successful new software is first introduced,...

A person invests $4000 in an account at 4% interest compounded annually. Let V= f(t) be the value (in dollars) of the account after t years or any fraction thereof.
a. Find the equation...