Solve.Austin and Rachel Williams are taking a trip and plan to travel 2080 miles. Their car gets 32.8 miles per gallon. Approximate how many gallons of gasoline their car will use by rounding 32.8 to the nearest ten. Round the result to the nearest gallon.
A. 6239 gallons
B. 69 gallons
C. 70 gallons
D. 6240 gallons
Answer: B
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Provide an appropriate response.Suppose the cost to produce 100 units of a product is $5000, and the cost to produce 125 units is $6000. If cost c is linearly related to output q, find an equation relating c and q.
Fill in the blank(s) with the appropriate word(s).
Solve.In order for a chemical reaction to take place, the Fahrenheit temperature F of the reagents must be at least 103.08° F. At what Celsius temperatures C will the reaction occur? 
A. {C? C ? 39.49°} B. {C? C ? 217.54°} C. {C? C ? 39.49°} D. {C? C < 217.54°}
Solve.Last year, Lu Yi's tax refund was $493. This year it was $726. How much more was this year's refund than last year's refund?
A. $133 B. $233 C. $227 D. $1,219
Perform the indicated operation. Simplify if possible.
- 
A. - 
B. - 
C. 
D. 