First, use front-end rounding to round each number and estimate the answer. Then, find the exact answer.Julian's grocery bill was $9.32. He gave the clerk a $20 bill. How much change should he receive?
A. Estimate: $11; exact: $10.67
B. Estimate: $11; exact: $9.68
C. Estimate: $11; exact: $10.68
D. Estimate: $9; exact: $9.32
Answer: C
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Determine the domain and range of the function.f(x) = -4x2 - 56x - 200
A. Domain: [7, ?) Range: (-?, -4] B. Domain: (-?, ?) Range: (-?, 7] C. Domain: (-?, ?) Range: (-?, -4] D. Domain: (-?, ?) Range: [7, ?)
Solve the problem. Write ratios in lowest terms.Peter's farm has a well that is 7
feet deep. Jill has a well in her backyard which is 11 feet deep. Find the ratio of the depth of Peter's well to Jill's well.
A. 
B. 
C. 
D. 
Make the indicated conversion.5 yd = 
in.
A. 15 B. 90 C. 180 D. 60
Solve the problem. Round to the nearest tenth if necessary.The price of a printer was reduced from $400 to $300. What was the percent of decrease?
A. 33.3% B. 25% C. 75% D. 30%