Simplify the algebraic expression.8(3y + 8) - (7y - 6)
A. 31y + 2
B. 17y + 70
C. -17y + 58
D. 31y + 14
Answer: B
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Solve the problem.A pole of length L is carried horizontally around a corner where a 5-ft-wide hallway meets a 6-ft-wide hallway. For 0 < ? < 
, find the relationship between L and ? at the moment when the pole simultaneously touches both walls and the corner P. Estimate ? when L = 18 ft. Round the result to three decimal places. 
A. L = 5 cot ? + 6 tan ?; ? ? 0.300, 1.215 B. L = sec ? + 11 csc ?; ? ? 0.721, 1.425 C. L = 6 sec ? + 5 csc ?; ? ? 0.458, 1.060 D. L = 5 sec ? + 6 csc ?; ? ? 0.511, 1.113
Write the number as a binary number.2578
A. 11,110,1012 B. 100,010,1002 C. 101,010,0002 D. 10,101,1112
Evaluate the expression according to the order of operations.80 - 2 ? 4 ? 6
A. 432 B. 68 C. 32 D. 1872
Write as a percent.2.3
A. 0.23% B. 230% C. 23% D. 0.0023%