This frequency table gives the distribution of ages of 100 people in a small town. 
How many people are:30 years of age or older but less than 40 years of age
A. 64
B. 18
C. 36
D. 22
Answer: D
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Solve the problem.A region in the first quadrant is bounded above by the curve y = cosh x, below by the curve 
on the left by the y-axis, and on the right by the line 
Find the volume of the solid generated by revolving the region about the x-axis.
A. 5?
B. 0
C. 2?
D. 
Solve the problem.This year, a community recovered 26% of its municipal solid wastes through recycling, up from 17% when the recycling program first began five years ago. Let y represent the percentage recycled and x the number of years since the program began. Find a linear function that fits this data.
A. y = 1.8x + 24 B. y = 1.8x + 17 C. y = 0.9x - 17 D. y = -1.8x + 7
Solve.A machine can fill 6069 cartons of milk in 0.7 hour. How many cartons of milk can it fill per hour?
A. 7586 cartons B. 6070 cartons C. 8670 cartons D. 4248 cartons
Answer the question.True or False: The graph of the equation y = -12 is a horizontal line.
A. False B. True