Solve the problem.In 1995 the United States recovered 20% of its municipal solid wastes through recycling, up from 17% in 1990. Let P represent the percentage recycled and t the number of years since 1990. Find a linear function P(t) that fits this data.
A. P(t) = 0.6t + 17
B. P(t) = 0.3t - 17
C. P(t) = 0.6t + 24
D. P(t) = -0.6t + 7
Answer: A
Mathematics
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Find the domain of the rational function.h(x) = 
A. {x|x ? 0, -9, 2} B. {x|x ? -2, 9} C. {x|x ? 0, -2, 9, 140} D. {x|x ? 0, -2, 9}
Mathematics
Add.-93 + (-95)
A. 2 B. -2 C. 188 D. -188
Mathematics
The graph shows the total sales in thousand of dollars from the distribution of x thousand catalogs. Find the average rate of change of sales with respect to the number of catalogs distributed for the change in x.
10 to 40
A. 
B. 
C. 
D. 4
Mathematics
Match the graph to one of the listed functions. 
A. f(x) = x2 - 2 B. f(x) = x2 - 2x C. f(x) = -x2 - 2 D. f(x) = -x2 - 2x
Mathematics