Solve the problem.A machine produces open boxes using square sheets of plastic. The machine cuts equal-sized squares measuring 3 inches on a side from each corner of the sheet, and then shapes the plastic into an open box by turning up the sides. If each box must have a volume of 675 cubic inches, find the length of one side of the open box.
A. 15 in.
B. 14 in.
C. 18 in.
D. 21 in.
Answer: A
Mathematics
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Solve.Best Rentals charges a daily fee plus a mileage fee for renting its cars. Barney was charged $135 for 3 days and 300 miles, while Mary was charged $241 for 5 days and 600 miles. What does Best Rental charge per day and per mile?
A. $16 per day, 29¢ per mile B. $28 per day, 17¢ per mile C. $30 per day, 17¢ per mile D. $29 per day, 16¢ per mile
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Find the sum of the geometric series.
A. 186 B. 42 C. 255 D. 22
Mathematics
Find the area of a sector of a circle with radius r and central angle ?. Round your answer to one decimal place.? = 
, r = 80.7 cm
A. 2046 cm2 B. 651.3 cm2 C. 25.4 cm2 D. 4092 cm2
Mathematics
Decide whether the statement is true or false.1 is a solution of -8x + 9x = 1.
A. True B. False
Mathematics