Please help! Loki's home repairs will cost him $1,200. The bank will give him a loan for the full amount at an interest rate of 21%. The bank expects a payment of $121 every month for 12 monthsHow much interest will Loki have paid when the loan balance is $0?

$1,200=to repair his home
21%=interest
$121=every month
12=month

21. X
——= ———-
100. 1200
Cross multiply
21*1200=25200
100*x=100x
25200/100=252
So Loki paid $252 interest