Solve the equation.
= -x
A. ?
B. {7, 1}
C. {1}
D. {7}
Answer: A
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Solve the problem.One conveyor belt can move 1000 boxes in 12 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. 6
min
C. 1
min
D. 
min
Find the surface area of the circular solid. Unless otherwise specified, use 3.14 for ? and round your answer to the nearest tenth.A right circular cylinder with r = 9 in, h = 8 ft (Give results in square feet.)
A. 20.6 ft2 B. 960.8 ft2 C. 41.2 ft2 D. 14.1 ft2
Find the value of the ordinary annuity. Interest is compounded annually unless otherwise stated. Round to the nearest cent.R = $100, i = 0.05, n = 10
A. $3257.79 B. $310.27 C. $1257.79 D. $1102.66
Write the ratio as a fraction in simplest form.2
to 2
A. 
B. 
C. 
D. 