Ok so A is the same as the square root of 4b+c but all of the numbers and the answer have to be prime numbers
Answer:
45.1 km^2
hope this helps
have a good day :)
Step-by-step explanation:
Subtract 15 from the depth:
200-15 = 185
Subtract 20 from the width ( 10 from both sides)
250-20 = 230
Area to build on: 185 x 230 = 42,550 square feet.
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