30. A fence surrounds a square plot of land. The area of the land is 324 yd2. Find the length of each side
of the fence.
Use the strategy Systematic Guess and Check.
• 10 x 10 = ? The initial guess is (correct, high, low).
• 20 x 20 = ?This guess is (correct, high, low).
? X ?= 324 This guess is correct.

or

x-150=475   x=625

step-by-step explanation:

if the bike after the sale ($150) is $475 then just simply add 150 to 475.

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