Answer:
The original price of the tent was $130,00.
Explanation:
The original price of the tent will be called "x". The store increased the value by 25%, so the new value is the original one plus 0.25 of the original one, so the new value is 1.25*x. The costummer paid the increased value less the $10 from the coupon, so we have:
paid = 1.25*x - 10
Since he paid $152.5 for the tent we can compute the original value as shown bellow:
152.5 = 1.25*x - 10
1.25*x = 152.5 + 10
1.25*x = 162.5
x = 162.5/1.25 = 130
The original price of the tent was $130,00.