Add or subtract. Simplify your answer to lowest terms.
+ 
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem.The perimeter of a rectangle is 42 cm. The length is 9 cm more than the width. Find the length and the width.
A. Length: 21 cm; width: 12 cm B. Length: 15 cm; width: 6 cm C. Length: 17 cm; width: 8 cm D. Length: 9 cm; width: 6 cm
Solve the problem.The table lists the monthly precipitation P in Salem, Missouri, where x = 1 corresponds to January and 
corresponds to September.
Determine the value of P during September.
A. 1.4 inches B. 2.4 inches C. 1.7 inches D. 1.2 inches
Use the intermediate value theorem for polynomials to show that the polynomial function has a real zero between the numbers given.f(x) = x4 - 9x2 + 18; 1.7 and 1.8
A. f(1.7) = 0.6579 and f(1.8) = -0.6624 B. f(1.7) = 0.3421 and f(1.8) = 0.6624 C. f(1.7) = -0.3421 and f(1.8) = -0.6624 D. f(1.7) = 0.3421 and f(1.8) = -0.6624
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. What are Mr. Cameron's expected concert earning?
A. $300,000 B. $360,000 C. $60,000 D. $218,400