Answer:
$15
Step-by-step explanation:
Assuming all the payments are the same, simply divide the total with the amount of payments:
45/3 = 15
$15 each payment.
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Answer: 30
Because you can break the pentagonal base into triangles and the formula to find the area of a triangle is 1/2 Bh so 840/14 = 60 divided by 1/2 = 30