At the beginning of school, we had 40 algebra books. We increased our supply by 65%. How many algebra books does the school have now?

Which statements correctly use the properties of exponents to simplify? Check all that apply. a. (xy^2) ^2 = x^2 y^4 b. x^3x^3 = x6 c. 3y^-2 = 3/y^2 d. 2 (x^2) ^3 = 8x^6 e. - x^2 (-x^3) = - x^6

Simplify: (7x2 - 8x - 4) + (-2x2 + 3x + 5) + (5x2 - 10x - 8) 10x2 + 15x - 7 10x2 + 5x - 7 10x2 - 15x - 7 10x2 - 15x - 9

Akash has already spent 4 minutes on the phone, and he expects to spend 1 more minute with every phone call he routes. In all, how many phone calls does Akash have to route to spend a total of 37 minutes on the phone?

4+6-3:7 how do i get 1 for the answer

Find the limit of sin (ax) / tan (bx) as x approaches 0.

What is the formula for finding the average number of calls between two cities

When two systems of equations share a line, what does that mean?

Multiple Representations Simplify this expression. Use pencil and paper. Write at least two expressions equivalent to this one. Explain why they are equivalent.

A scientist collected 7 water samples from local streams. Each sample was the same size, and she collected 0.7 liters of water in all. What was the volume of each water sample?

Write a story to represent what percent is 12 out of 25?