Multiply.0.78 × 1000
A. 0.78
B. 7800
C. 78
D. 780
Answer: D
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Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 5
+ 6
A. 17
B. 11
C. 7
D. -17
Find (a) the opposite and (b) the absolute value of the number.14.7
A. (a) -14.7 (b) -14.7 B. (a) -14.7 (b) 14.7 C. (a) 14.7 (b) -14.7 D. (a) 14.7 (b) 14.7
Solve the problem.A car rental company has two rental rates. Rate 1 is 
per day plus 
per mile. Rate 2 is 
per day plus 
per mile. If you plan to rent for one day, how many miles would you need to drive to pay less by taking Rate 2?
A. more than 900 miles B. more than 1800 miles C. more than 450 miles D. more than 1000 miles
A women's clothing chain takes inventory of one brand of sweater. The sweaters come in 3 sizes: small, medium, and large, and 5 colors. The inventories at stores A, B, and C are represented by the matrices below. 
A = 
; B = 
; C = 
Show that A + B = B + A.
What will be an ideal response?