This is a hypothesis equation n=22,samplemean=76.9, sx =8.5, alpha=.02, claim: the popultaion mean < 80

Write the fraction 9/50 as a decimal if needed round to the nearest hundredth

Multiply. write your answer in simplest form. 3/8 x 5/7

Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?