Provide an appropriate response.Given the set 
, give the elements that are natural numbers.
A. 0, 9
B. -8, 9
C. 9
D. -8, 0, 9
Answer: C
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Solve.A company produced 48,000,000 tons of steel last year. How many pounds of steel was this?
A. 24,000,000,000 lb B. 24,000 lb C. 96,000,000 lb D. 96,000,000,000 lb
Solve the problem.An office manager is buying used filing cabinets. Each small file cabinet costs $4, takes up 5 square feet of floor space, and holds 8 cubic feet of files. Each large file cabinet costs $12, takes up 10 square feet of floor space, and holds 14 cubic feet of files. The total cost cannot exceed $60, and the office has no more than 60 square feet of floor space available for the cabinets. How many of each file cabinet should the manager buy to maximize storage capacity? What is the maximum storage capacity?
A. 3 small file cabinets and 6 large file cabinets; 132 cubic feet B. 9 small file cabinets and 0 large file cabinets; 72 cubic feet C. 0 small file cabinets and 9 large file cabinets; 126 cubic feet D. 6 small file cabinets and 3 large file cabinets; 90 cubic feet
Graph the function f by starting with the graph of y = x2 and using transformations (shifting, compressing, stretching, and/or reflection).f(x) = 4x2 - 6
A. 
B. 
C. 
D. 
Solve the problem.An object is propelled vertically upward from the top of a 208-foot building. The quadratic function 
models the ball's height above the ground, 
in feet, t seconds after it was thrown. After how many seconds does the object reach its maximum height? Round to the nearest tenth of a second if necessary.
A. 9.4 sec B. 2 sec C. 1.4 sec D. 4 sec