Determine whether 18 is a solution of the equation x+12=36

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

Simplify (1/2)4th power a. (1/16) b.(1/8) c.(1/4)

Solve 13 + w/7= -18 (w/7 is a fraction)