Find the population in 20 years to two significant digits.
A certain geographic region has a population of about 30,000,000 and a doubling time of 30 years. Assume that the growth continues at the same rate.
A) 57,000,000 people C) 59,000,000 people
B) 58,000,000 people D) 60,000,000 people
D) 60,000,000 people
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Solve the problem.Ethan was asked by his teacher to subtract 15 from a certain number and then divide the result by 5. Instead, he subtracted 5 and then divided the result by 15, giving an answer of 30. What would his answer have been if he had worked the problem correctly?
A. 88 B. 44 C. 91 D. 89
Solve the inequality and graph. Express your answer in interval notation.-29 ? -4x - 1 ? -13
A. (-7, -3)
B. [3, 7]
C. [-7, -3]
D. (3, 7)
Find the equation of the parabola which has the given vertex V, which passes through the given point P, and which has the specified axis of symmetry.V(1, -2), P(0, -1), horizontal axis of symmetry
A. (y+ 2)2 = x - 1 B. (x+ 2)2 = -(y - 1) C. (y+ 2)2 = x + 1 D. (y+ 2)2 = -(x - 1)
Decide whether or not the functions are inverses of each other.f(x) = 8x - 9, g(x) = 
A. No B. Yes