Solve the problem.A rectangle has a length of x + 3 and a width of x - 3, and has an area of 40 square units. Find the length and width of the rectangle. (A = LW)

A. width = 2 units; length = 20 units
B. width = 5 units; length = 8 units
C. width = 1 unit; length = 40 units
D. width = 4 units; length = 10 units


Answer: D

Mathematics

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Solve the problem.Avegail needs to determine the distance at certain points across a lake. Her crew and she are able to measure the distances shown on the diagram below. Find how wide the lake is to the nearest tenth of a meter.

A. 165.5 m B. 80 m C. 8.9 m D. 132.7 m

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Find the sum. 

A.
B.
C.
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E.

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Add and simplify. +  

A.
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D.

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