Rewrite the statement using the indicated property of addition.Associative: 9 + (3 + 11) = 
A. (9 + 3) - 11
B. (9 + 3) + 11
C. (3 + 11) + 7
D. (3 + 11)
Answer: B
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Solve using a proportion. Round your answer to the nearest hundredth when necessary.It takes Fred 12 minutes to type and spell check 10 pages. Find how many pages he can type and spell check in 4.5 hours. Round answer to the nearest tenth if necessary.
A. 324.0 pages B. 45 pages C. 375.0 pages D. 225.0 pages
Multiply.(3x + 1.3)(3x - 1.3)
A. 9x2 - 2.6 B. 9x2 - 16.9 C. 9x2 - 7.8x- 1.69 D. 9x2 - 1.69
Find:
dxIntegrate the terms in the order they appear.Enter your answer as a sum of power functions in standard form with any fractional powers or coefficients reduced of form 
.
What will be an ideal response?
Solve.The area of a rectangular wall in a classroom is 280 square feet. Its length is 2 feet shorter than three times its width. Find the length and width of the wall of the classroom.
A. width = 10 ft; length = 16 ft B. width = 10 ft; length = 28 ft C. width = 10 ft; length = 32 ft D. width = 10 ft; length = 12 ft