Simplify the expression. Assume that all variables are positive when they appear.
A. 
B. 7
C. 
D. 7
Answer: A
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Solve.A plane flying with a tailwind flew at a speed of 460 mph, relative to the ground. When flying against the tailwind, it flew at a speed of 330 mph. Graph the system to find the speed of the plane in calm air and the speed of the tailwind.
A. Speed of plane: 405 mph Speed of tailwind: 55 mph B. Speed of plane: 55 mph Speed of tailwind: 405 mph C. Speed of plane: 395 mph Speed of tailwind: 65 mph D. Speed of plane: 65 mph Speed of tailwind: 395 mph
Solve the problem.Don runs a charity fruit sale, selling boxes of oranges for $11 and boxes of grapefruit for $10. If he sold a total of 762 boxes and his total income was $8125, how many boxes of oranges did he sell?
A. 383 boxes B. 458 boxes C. 257 boxes D. 505 boxes
Find the solution set for the equation.|5m + 3| = 9
A. {2, - 4 }
B. {
, - 
}
C. {- 
, 
}
D. ?
Solve the application.A restaurant serves dessert in a cone-shaped dish with a diameter of 9 cm. If the dish is 13 cm deep, how many cubic centimeters of dessert can the dish hold? Use 3.14 to approximate the answer to two decimal places if necessary.
A. 826.61 cm3 B. 275.54 cm3 C. 1102.14 cm3 D. 122.46 cm3