In step 1 , it's commutative property of addition
hope it helps
Answer:
$53
Step-by-step explanation:
17+24=41
41+12=53
1- The interest rate is 7.5/year so 7.5/.75 year(9 months) at 500$ which would produce a profit of 28.13$ so a total of 528.13
2-7.5/year for 1.5 years(18 months) at 500$ so total interest is 56.25$ so the total is 566.25$