Solve the problem. Express the answer as a mixed number when appropriate.Find the perimeter of the rectangle with length L = 
centimeters, and width 
centimeters.
A. 
cm
B. 
cm
C. 
cm
D. 
cm
Answer: C
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. (72)-1
A. 
B. - 
C. -14
D. -49
Solve the problem.The side of a square equals the length of a rectangle. The width of the rectangle is 4 meters longer than its length. The sum of the areas of the square and the rectangle is 240 square centimeters. Find the side of the square.
A. 10 cm B. 100 cm C. 2 cm D. 12 cm
Solve the equation by factoring.x2 + 9x - 36 = 0
A. x = -12 or x = 3 B. x = -12 or x = 1 C. x = 12 or x = -3 D. x = 12 or x = 3
Solve the problem.The formula D = 5e-0.04h can be used to find the number of milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. When the number of milligrams reaches 3, the drug is to be given again. What is the time between injections?
A. 12.77 hrs B. 40.24 hrs C. 14.94 hrs D. 27.47 hrs