Is (8+√2)(8-√2) Rational or irrational no need to explain why

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

For which pair of functions is (gof)(a)=|a|-2?

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4