Answer:
28%
Step-by-step explanation:
-The price after the coupon discount is calculated as;

We reduce the discounted price by the service fee to determine the effective purchase price:

#Compare this final price to the original price:

Hence, the final price was 28% less than the original price.
It is right it is C 454.5
Answer:
x = 6 ft
Step-by-step explanation:
Total area of the given polygon = Area of triangle 1 + Area of rectangle 2 + Area of triangle 3
Area of triangle 1 = Area of triangle 3 = 
= 
= 4x square feet
Area of rectangle 2 = Length × Width
= 16 × 8
= 128 square feet
Total area of the given polygon = 4x + 128 + 4x
176 = 8x + 128
8x = 176 - 128
x =
x = 6 ft
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