Solve the problem.The value, in dollars, of a copy machine is given by the function
where x is the year and 
What is the value of the copy machine in 1998?
A. $1880
B. $1500
C. $2640
D. $2260
Answer: D
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Simplify the expression. Write your answer with only positive exponents. Assume that all variables represent nonzero real numbers.(4t)3
A. 4t3 B. t12 C. 12t3 D. 64t3
Answer the question asked. When necessary, round to the nearest hundredth.One conveyor belt can move 1000 boxes in 10 minutes. Another can move 1000 boxes in 11 minutes. If another conveyor belt is added and all three are used, the boxes are moved in 3 minutes. How long would it take the third conveyor belt alone to do the same job?
A. 
min
B. 7
min
C. 1
min
D. 
min
(2.62 × 103) × (4.7 × 10-1) = _____ . (Give your answer in correct scientific notation)
A. 1231.4 B. 12.314 C. 12.314 × 102 D. 1.2314 × 103
Give three kinds of notation for the percent.167%
A. 
; 167 × 
; 167 × 0.001
B. 
; 167 × 
; 167 × 0.0001
C. 
; 167 × 
; 167 × 0.01
D. 
; 167 × 
; 167 × 0.1