Jeremiah is factoring 0.64t24 – 9 by using the rule a2 – b2 = (a + b)(a – b). what will he use for the value of a?
a. 0.08t12
b. 0.8t12
c. 0.64
d. 0.8

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?

3.4a=57.8 what is the the value of a

Algebraically prove that a clockwise and counterclockwise rotation of 180° about the origin for triangle abc are equivalent rotations.