Solve the equation.
= 
A. {0, 4}
B. {-2, -4}
C. {0, 16}
D. ?
Answer: B
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Solve the problem.Doris has a fish pond 15 ft by 18 ft. She wants to put grass in a strip of uniform width around the pond. She has enough grass seed for 234 ft2. How wide will the strip be?
A. 9 ft B. 3 ft C. 1.5 ft D. 12 ft
An advertising agency conducted a survey and found that the number of units sold, N, is related to the amount a spent on advertising (in dollars) by the following formula:
?
?
How many units are sold after spending $8,000?
?
A. 
B. 
C. 
D. 
E. 
Sketch a graph that models the given situation.The distance that a person is from his home if he drives to a grocery store, stays 4 hours, and then drives home, if the distance to the store is 23 miles and the trip takes 1 hour each way.
A. 
B. 
C. 
D. 
Simplify the radical expression. If appropriate, include absolute values.- 
A. x7
B. 
C. -x7
D. - 