Solve the problem.The linear equation in two variables y = 1100x + 2577 models the altitude above sea level, y, in feet, of an airplane x minutes after taking off from a high plateau. The equation indicates that the airplane's altitude is initially 2577 feet above sea level and increases 1100 feet each minute. Find a solution of 
using 2 for x.
A. (2, 2200)
B. (2, 4677)
C. (2, 4877)
D. (2, 4777)
Answer: D
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Find the book value after the given number of years, using the straight-line method. Round your answer to the nearest dollar.Find the book value at the end of 10 years.Cost:$67,500Estimated life:12 yearsEstimated scrap value:$4,050
A. $11,250 B. $62,213 C. $14,625 D. $52,875
At one high school, students can run the 100-yard dash in a mean of 15.2 seconds with a standard deviation of 0.9 seconds. The times are very closely approximated by a normal curve. Rounding to the nearest tenth of a percent as necessary, find the percent of times that are:More than 15.2 seconds
A. 50% B. 68% C. 34% D. 48%
Use the addition property of equality to solve the equation.x + 5 = 7
A. 2
B. 12
C. -2
D. 
For the given functions f and g, find the requested function and state its domain.f(x) = 5 - 6x; g(x) = -2x + 6Find f + g.
A. (f + g)(x) = 3x; all real numbers
B. (f + g)(x) = -4x + 11; {x|x ? - 
}
C. (f + g)(x) = -8x + 11; all real numbers
D. (f + g)(x) = -2x + 5; {x| x ? 
}