Solve the problem.The formula for the perimeter of a rectangle is P = 2L + 2W. If P = 56 and W = 6, find the value of L.
A. 21
B. 22
C. 20
D. 19
Answer: B
Mathematics
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Solve and graph.x - 2(x - 5) ? 10x
A. 
B. 
C. 
D. 
Mathematics
Add. Do not use a number line except as a check. 9 + -9
A. -9 B. 9 C. 0 D. 18
Mathematics
Solve.The sum of the measures of the angles in any triangle is 180 degrees. In triangle ABC, angles A and B have the same measure, while angle C is 39 degrees larger than each of the other two angles. Find the measure of angle C.
A. 47° B. 86° C. 133° D. 94°
Mathematics
Use the given triangles to evaluate the expression. Rationalize all denominators. 
sin 
A. 
B. 
C. 
D. 
Mathematics