Mrs Finch first grade class was holding a used book sale. Some books were sold for $0.25 and others sold for $0.35. The first customer spent 3.15 for 11 books? How many $0.25 books and $0.35 books did the customer buy?

Do 12/14 and 8/10 have the same value? explain your answer.

The function a represents the cost of manufacturing product a, in hundreds of dollars, and the function b represents the cost of manufacturing product b, in hundreds of dollars. a(t) = 5t + 2 b(t) = 7t - 2t +4 find the expression that describes the total cost of manufacturing both products, a(t) + b(t). a. 7t^2 - 7t + 2 b. 7t^2 + 3 +6 c. 7t^2 + 7t - 6 d. 7t^2 - 3t + 6

What is the value of x in the equation (2)3) (x+6)= -18 a. -36 b. -33 c. -24 d. -18