Sam opened a money-market account that pays 4% simple interest. he started the account with $7,000 and made no further deposits. when he closed the account, he had earned $1,400 in interest. how long did he keep his account open?

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

answer: get jesus in your life

step-by-step explanation: