Solve the problem.Martha can rake the leaves in her yard in 6 hours. Her brother can do the job in 4 hours. How long will it take them to do the job working together?
A. 
hr
B. 
hr
C. 
hr
D. 
hr
Answer: D
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A box with a square base, x feet by x feet, and no lid is to have a volume of 33 cubic feet. We can calculate both the height h, in feet, and the amount C, in square feet, of cardboard needed to make the box from the length x:
?
A: Find the value of x for the box using the minimum amount of cardboard. B: What is the height of the box you found in part A?C: How much cardboard is used for the box you found in part A?
?
(Round your answers to two decimal places.)
What will be an ideal response?
Translate to a proportion.145% of what number is 43?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Sketch the graph of the line by locating the second point with the rise-and-run method.Through (-4, -2), m is undefined.
A. 
B. 
C. 
D. 
Multiply.(3xy2 + xy)2
A. 6x2y4 + 6x2y3 + x2y2 B. 9x2y4 + 9x2y3 + x2y2 C. 9x2y4 + 6x2y3 + x2y2 D. 9x2y4 + x2y2