Use a proportion to solve the problem.In baseball, the average number of earned runs given up by a pitcher in 9 innings is the pitcher's earned run average, ERA. For example, if a player gave up 90 earned runs in 250 innings during one year, his ERA is found by solving the proportion 
Find the ERA for a player who, in one year, gave up 83 earned runs in 229
innings. Round your answer to the nearest hundredth.
A. 2.76
B. 9.22
C. 3.26
D. 24.87
Answer: C
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Provide an appropriate response.L = 2C + 1.57(D + d) + 
will determine the length of a cross belt that goes around two pulleys, where C is the distance between the centers of the pulleys, D is the diameter of one pulley, and d is the diameter of the second pulley. Find the length of the belt if the distance between the centers of the pulleys is 28 in., the diameter of one pulley is 18 in., and the diameter of the other pulley is 8 in. Round to the nearest inch.
A. 97 in. B. 98 in. C. 101 in. D. 103 in.
Simplify the expression. Assume that all bases are nonzero real numbers and all exponents are integers.
A. y -16p - 20 B. y-21p + 5 C. y-8p - 20 D. y-24p - 20
Use the Leading Coefficient Test to determine the end behavior of the polynomial function.f(x) = x3(x - 4)(x + 5)2
A. rises to the left and rises to the right B. falls to the left and rises to the right C. falls to the left and falls to the right D. rises to the left and falls to the right
Solve the equation. Round the solution to four decimal places, if necessary.ln (3x) + ln (7x) = 6
A. 3.7417 B. 0.5345 C. 4.383 D. 92.0432