Solve the equation.
= 2
A. {20, 36}
B. {36}
C. {20, 36, 0}
D. {20}
Answer: A
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Solve.Find f-1 for the function f = {(1, 5), (3, 8), (-5, -1)}.
A. 
B. Not invertible
C. {(5, 8, -1)}
D. {(5, 1), (8, 3), (-1, -5)}
Write the inequality using interval notation, and illustrate the inequality using the real number line.-7 < x < -6
A. [-7, -6]
B. (-7, -6)
C. (-7, -6)
D. [-7, -6)
Evaluate the expression, given x = -2, y = 3, and a = -4.
A. 16 B. -11 C. 11 D. -7
Solve.The following table shows the radius of the each of the moons orbiting a planet named Geo I. Moon Radius (mi) Luna 1 418 Luna 2 2163 Luna 3 303 Luna 4 721 Luna 5 1139What is the mean radius of the moons? Round to the nearest whole number.
A. 512 mi B. 721 mi C. 303 mi D. 949 mi