Solve the system of equations 2x + 3y = 40 and –2x + 2y = 20. a. x = –10, y = 20 b. x = 10, y = 20 c. x = –6, y = 4 d. x = 2, y = 12

What is the solution to the equation 9^(x+1) =27

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

Solve -2(4y + 6) = 52. 5 -5 8 -8 and !