Solve the problem. Use 3.14 to approximate the value of ?. Round to nearest tenth unless instructed differently.Find the area of the circular racetrack. Round to the nearest foot.r = 85 ftR = 135 ft
A. 31,400 ft2
B. 22,687 ft2
C. 34,540 ft2
D. 57,227 ft2
Answer: C
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Simplify. Assume that all variables represent positive numbers.
A. 
B. 
C. 0
D. 
Round the dollar amount to the nearest dime (tenth), but express the answer in dollars and cents.$4.32
A. none of these B. $4.30 C. $4.20 D. $4.40
Solve.It is recommended that there be at least 13 square feet of work space for every person in a conference room. A certain conference room is 18 feet by 18 feet. Find the maximum number of people the room can accommodate.
A. 35 people B. 24 people C. 25 people D. 45 people
Solve the problem.A gas station sells 4820 gallons of regular unleaded gasoline in a day when they charge $1.35 per gallon, whereas they sell 3946 gallons on a day that they charge $1.40 per gallon. Find a linear function that expresses gallons sold as a function of price. Use this function to predict the number of gallons sold at a price of $1.18 per gallon.
A. 7788.3 gallons B. 7791.6 gallons C. 7795.7 gallons D. 7800.6 gallons