For the given pair of variables determine whether a is a function of b, b is a function of a, both, or neither.a is the number of years of formal education of an adult living in the United States, and b is his or her age in years.
A. a is a function of b
B. Both
C. Neither
D. b is a function of a
Answer: C
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Solve the problem. Round to the nearest tenth, if necessary.If an object is propelled upward from a height of 160 feet at an initial velocity of 144 feet per second, then its height h after t seconds is given by the equation 
After how many seconds does the object hit the ground? Round to the nearest tenth of a second, if necessary.
A. 5.0 sec B. 9.0 sec C. 10 sec D. 11 sec
Find the annual amount of depreciation using the units-of-production method. Round to the nearest dollar.Depreciation per unit: $0.36Units of production: 23,000
A. $8,280 B. $639 C. $828 D. $6,389
Use the Pythagorean Theorem to find the missing side of the right triangle.
A. 5
B. 10
C. 125
D. 250
Complete the factoring.7x2y5 + 14x2y4 = 7x2y4( )
A. 7y + 2x B. y + 2 C. y + 2x2 D. x2y + 2