Simplify the expression by multiplying. 8(4xy)
A. 12xy
B. -12xy
C. 32xy
D. -32xy
Answer: C
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Express the number in scientific notation.870,000
A. 8.7 × 105 B. 8.7 × 104 C. 8.7 × 10-4 D. 8.7 × 10-5
Solve. Remember to insert units when writing your answer.In November, 10 tons 1,392 lb of coal were delivered to a steel mill. In December, 6 tons 1,592 lb were delivered. Find the total amount of coal delivered in these two months.
A. 16 tons 984 lb B. 3 tons 1,800 lb C. 4 tons 1,800 lb D. 17 tons 984 lb
Provide an appropriate response.
If C(x) = 6x + 1,000 and A(x) = 
, R(x) = $30x, and P(x) = R(x) - C(x), then if x = 100, P(x) =
A. 1,800 B. 1,400 C. 2,000 D. 1,600
Find the mean. Round to the nearest tenth when necessary.The numbers of points Dee scored playing basketball over the last four games were as follows: 17, 1, 22, 17
A. Mean = 12.8 points B. Mean = 14.3 points C. Mean = 19.3 points D. Mean = 14.8 points