Use a fraction to represent the shaded area of the figure.
A. 
B. 
C. 
D. 
Answer: D
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Provide an appropriate response.A marathoner ran the 26.2 mile New York City Marathon in 2.5 hrs. Did the runner ever exceed a speed of 9 miles per hour?
What will be an ideal response?
Solve the equation.
(10x - 20) = 
(8x - 4)
A. 
B. -1
C. -6
D. 1
Solve the problem.Robert has built a mechanical model solar system with three balls representing planets at the ends of rods attached to the center representing the sun. The planets are aligned when he turns on the motor. The innermost planet makes a revolution in 12 seconds, the middle planet makes a revolution in 20 seconds, and the outermost planet makes a revolution in 28 seconds. After how many seconds will the planets be aligned again?
A. 210 seconds B. 630 seconds C. 420 seconds D. 840 seconds
Find the quotient and the remainder.x4 + 4x2 + 8 divided by x2 + 1
A. x2 + 3x + 
; remainder 5
B. x2 + 3x + 2; remainder 0
C. x2 + 3; remainder 5
D. x2 + 3; remainder 0