Persevere in Problem Solving A football field is shown at right • What are the dimensions of
a football field in feet?
537 / yd
A chalk line is placed around the
120 yd
perimeter of the football field. What is the length of this line in feet?
About how many laps around the perimeter of the field would equal
1 mile? Explain.

(hurry! ) which expression is equivalent to the following complex fraction?

Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition

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