•simplify the expression: 13x2 + 5x-6) - (4x2 - 12x +17)
a. 7x2 - 17x-23
b. -x2 + 17x + 23
c. -x2 + 17x- 23
d. x2 - 17x-11

Trish receives $450 on the first of each month. josh receives $450 on the last day of each month. both trish and josh will receive payments for next four years. at a discount rate of 9.5 percent, what is the difference in the present value of these two sets of payments?

25 ! the line of best fit is h = 5a + 86. predict the height at age 16. show your work.

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.