4(6a + 2b^2) - 1/3 (27b^2 - 15a)
if a = -2 and b = 3

Question 5 spring semester final exam math evaluate

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17

Sam opened a money-market account that pays 3% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $420 in interest. how long did he keep his account open?