Suppose a certain economy's consumption function is  where  and x are measured in billions of dollars. Find the marginal propensity to consume (the rate of change of consumption with respect to income,

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A. $3.7 billion/billion dollars

B. $1.39 billion/billion dollars

C. $1.66 billion/billion dollars

D. $2.2 billion/billion dollars

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Answer: C

Mathematics

Find the ordered triple that belongs to the set.{x, x + 6, x - 7|x = 1}

A. (-6, 1, 7) B. (1, 7, -6) C. (-6, 7, 1) D. (1, -6, 7)

Write a percent for both the shaded and unshaded parts of the figure.

A. 70% shaded; 3% unshaded B. 7% shaded; 93% unshaded C. 70% shaded; 30% unshaded D. 0.7% shaded; 99.3% unshaded

Use substitution to determine whether the given ordered pair is a solution of the given equation.(0, 5); x2 + y2 = 25

A. Yes B. No

Solve the problem.A survey revealed that 36% of people are entertained by reading books, 26% are entertained by watching TV, and 12% are entertained by both books and TV. What is the probability that a person will be entertained by either books or TV? Express the answer as a percentage.

A. 62% B. 50% C. 12% D. 74%