The opening balance of one of the 31-day billing cycles for Suzy's credit card was $7400, but after 15 days Suzy made a payment of $4900 to decrease her
balance, and it stayed the same for the remainder of the billing cycle. If her
credit card's APR is 22%, how much more in interest would she pay for the
billing cycle with the previous balance method than with the adjusted balance
method?
A. $184.98
B. $138.27
C. $91.56
o D. $46.71
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a = 3.14

b = 18

c = 18/5 or 3.6 or 3 3/5

step-by-step explanation:

1. 180°. the sum of the interior angles of a triangle is 180°, for the equilateral triangle that it has three equals side is 60°+60°+60°=180°.

2. 60°. each interior angle of a equilateral triangle is 60°

3. 120°. the measure of ∠m is 120°, the sum of the angles ∠m and ∠n is equal to 180°. so, in order to find the measure of ∠m, we have ∠m+∠n=180° > ∠m=180°-∠n > ∠m=180°-60°=120°.

4. 360°. the sum of the exterior angles of an equilateral triangle is ∠m+∠r+∠x=120°+120°+120°=360°. the exterior angles of any triangle always add 360°.

10+4√2 is the answer. i dont have the time to explain.