Solve the problem.The perimeter of a rectangle is 48 m. If the width were doubled and the length were increased by 5 m, the perimeter would be 68 m. What are the length and width of the rectangle?
A. width 12, length 12
B. width 7, length 12
C. width 19, length 5
D. width 5, length 19
Answer: D
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Simplify. Combine like terms if possible.-9z - (-4z)
A. -5z B. -5z2 C. -13z D. 5z
Solve the problem. Round to the nearest tenth if necessary.A 28-ft-tall ladder is placed so that it reaches 15 ft up on the wall of a house. How far is the base of the ladder from the wall of the house?
A. 559 ft B. 23.6 ft C. 1,009 ft D. 31.8 ft
Solve the problem.A student must choose 1 of 5 science electives, 1 of 6 social studies electives, and 1 of 9 language electives. How many possible course selections are there?
A. 270 course selections B. 30 course selections C. 20 course selections D. 540 course selections
Find the area A. Round the answer to three decimal places.
A. 8.167 ft2 B. 51.313 ft2 C. 25.656 ft2 D. 3.665 ft2