Factor completely.2x2y - 2y3
A. 2y(x - y)2
B. y(2x2 - 2y2)
C. 2y(x - y)(x + y)
D. 2(x2y - y3)
Answer: C
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Solve the problem. Round your answer to the nearest tenth unless otherwise indicated.Students at East Central High School earned $286 selling subscriptions. They want to make $3120 for a club trip. What percent of their goal has been reached?
A. 10.9% B. 0.9% C. 9.2% D. 109%
Solve the problem.The number of births in County A has been increasing in recent years. Using the information given on the bar graph for the years 1960 and 1990, find an equation to model the number of births y for the year x. Let x = 0 correspond to the year 1960.
A. y = 
x - 2190
B. y = 
x + 1693
C. y = 
x + 1693
D. y = 
x + 
An open box is to be made from a square piece of cardboard, 35 inches on a side, by cutting equal squares with sides of length x from the corners and turning up the sides (see figure below). Determine the function, V, in terms of x, that represents the volume of the box. 
a. 
b. 
c. 
d. 
e. 
Solve the problem.In 1995 the United States recovered 24% of its municipal solid wastes through recycling, up from 17% in 1990. Let y represent the percentage recycled and x the number of years since 1990. Find a linear equation that fits this data.
A. y = 1.4x + 17 B. y = -1.4x + 7 C. y = 1.4x + 24 D. y = 0.7x - 17