Solve the problem.Two plumbers make house calls. One charges $95 for a visit plus $30 per hour of work. The other charges $80 per visit plus $40 per hour of work. For how many hours of work do the two plumbers charge the same?
A. 2 hr
B. 1.5 hr
C. 0.5 hr
D. 1 hr
Answer: B
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Provide an appropriate response.A garden plot turned out to be a parallelogram in shape. If it is 18 feet long, adjacent side is 20 feet, and the height is 15 feet, what is the area of the garden?
A. 360 ft2 B. 270 ft C. 360 ft D. 270 ft2
Solve the problem. Round to the nearest hundredth, if necessary.The average middle-distance runner at a local high school runs the mile in 5.8 minutes, with a standard deviation of 0.2 minute. Find the percentage of a runners that will run the mile in less than 5.5 minutes?
A. 93.32% B. 6.68% C. 30.85% D. 69.15%
Multiply. Assume that all variables represent nonnegative real numbers.
A. 3m2 + 
B. 3m2 + m 
+ m 
+ 
C. 3m2 - m 
+ 3m 
- 
D. 3m2 + m 
+ 3m 
+ 
Find the missing factor.x2 + 13x + 42 = (x + 7)( )
A. (x - 7) B. (x - 6) C. (x + 7) D. (x + 6)