Solve the problem.How much will it cost to pave a rectangular patio measuring 16 ft by 21 ft if the material will be 
inches thick and if it costs $18.00 per cubic foot?
A. $6048.00
B. $504.00
C. $672.00
D. $2016.00
Answer: C
Mathematics
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Simplify the expression. Write the answer with positive exponents. Assume that all variables represent positive numbers.
A. 
B. 5
C. 25
D. 
Mathematics
Add. Do not use a number line except as a check.- 
+ 
A. - 
B. - 1
C. 1
D. 
Mathematics
Factor by grouping.12r2 + 18ry - 2xr - 3xy
A. (2r + 3y)(x - 6r) B. (2r + 3y)(6r - x) C. (2r + 3y)(6x - r) D. (3r + 2y)(6r - x)
Mathematics
Write the statement as an inequality.x is negative
A. x ? 0 B. x ? 0 C. x < 0 D. x > 0
Mathematics