50 POINTS!!!!!!!! EASY QUESTION QUESTION 4If $400 is deposited in an account that pays 4.25% interest, what is the difference in the amount after 2 years between the amount earned if the principal is compounded annually and the amount earned calculated using simple interest?$0.72$1.12$2.54$3.761 points QUESTION 5If $1200 is deposited in an account that pays 6.5% interest, what is the difference in the amount after 4 years between the amount earned if the principal is compounded annually and the amount earned calculated using simple interest?$3.20$15.12$23.54$31.76

Salutations! your answers are:
Question 4: A, .072
Explanation: the amount of compound interest is $434.72, while the regular interest is $434. So, we must subtract. 
434.72-434=0.72.
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Question 5: D, $31.76 
Explanation: The amount of compound interest is $1,543.76, while the regular interest is $1,512, Then we subtract.
$1,543.76-$1,512=$31,76.
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(P.S. Brainliest would be appreciated.)