18- eliminate the parameter. x = t + 4, y = t2 answer choices: a) y = square root of x + x + 4 b) y = square root of quantity x minus four c) y = x2 + 16 d) y = x2 - 8x + 16

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