Find the unknown number in the proportion. Write your answer as a whole number or a mixed number if possible.
= 
A. x = 9
B. x = 8
C. x = 8
D. x = 
Answer: C
Mathematics
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Solve the problem.A bicycle wheel rotates 80 times in 1 minute. Through how many degrees does a point on the tip of the wheel move in 12 seconds?
A. 5760° B. 480° C. 960° D. 72°
Mathematics
Graph the equation.
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?
A. ?
B. ?
C. ?
D. ?
Mathematics
Find the average rate of change for the function between the given values.f(x) = 4x2; from 0 to 
A. 
B. 7
C. 2
D. - 
Mathematics
Find the expected value for the random variable.For a certain animal species, the probability that a female will have a certain number of offspring in a given year is given in the table below. Find the expected number of offspring per year.
A. 1.58 B. 1.75 C. 1.38 D. 2
Mathematics