Solve the problem.Brandon can paint a fence in 12 hours and Elaine can paint the same fence in 11 hours. How long will they take to paint the fence if they work together? Give your answer rounded to one decimal place, if necessary.
A. 11.5 hr
B. 5.7 hr
C. 5.5 hr
D. 5.8 hr
Answer: B
Mathematics
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Solve.7x2 + 5x + 9 = 0
A. 
, 
B. 
, 
C. 
, 
D. 
, 
Mathematics
Solve the problem. Round rates to the nearest tenth of a percent and dollar amounts to the nearest cent.A store sells an item for $240 each. If this is a 56.1% markup on the selling price, find the equivalent markup percent on cost.
A. 240% B. 35.9% C. 81.9% D. 127.8%
Mathematics
Multiply.0(-19)
A. -38 B. 19 C. -19 D. 0
Mathematics
Find the product.
A. 130.24 B. 23.4 C. 131.23 D. 130.13
Mathematics