Solve the problem.An economist predicts that the buying power B(x) of a dollar x years from now will decrease according to the formula B(x) = 0.47x. How much will today's dollar be worth in 4 years? Round to the nearest cent.
A. $1.88
B. $0.74
C. $0.05
D. $1.92
Answer: C
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Fill in the blank with one of the words or phrases listed below. 
In the equation y = kx, y varies 
as x.
A. parallel B. inversely C. directly D. jointly
Provide an appropriate response.Find the mode of the following: 12, 34, 65, 76, 65, 34, 12, 56, 34
Fill in the blank(s) with the appropriate word(s).
Using a dot product, calculate the work done in the given situation.A 165-pound person climbs 5 steps up a ladder that has rungs spaced at one-foot intervals. The ladder is inclined at an angle of 74° relative to the ground.
A. 793 ft-lb B. 825 ft-lb C. 227.4 ft-lb D. No work is done
Solve the problem.This year, a community recovered 20% of its municipal wastes through recycling, up from 17% when the recycling program first began five years ago. Let P represent the percentage recycled and t the number of years since the program began. Find a linear function P(t) that fits this data. Use this function to predict the percentage recycled 11 years from now.
A. 28.3% B. 23% C. 24.7% D. 26.6%