mike is trying to choose between two phone plans. The first plan, with AT&T, costs a flat rate of $25 a month, with calls costing an additional 35 cents per minute. The second company, Verizon, charges a flat rate of $40 a month, but calls only cost 10 cents per minute. At how many minutes the two plans cost the same? What is that cost?

Which account has the highest effective annual interest rate? not necessary but show how you got your answer. a. account 1: interest is compounded quarterly at an annual rate of 4.20%.b. account 2: interest is compounded monthly at an annual rate of 4.15%.c. account 3: interest is compounded semiannually at an annual rate of 4.10%d. account 4: interest is compounded annually at a rate of 4.25%.