Solve the system of two equations in two variables.5x - 2y = 8 15x - 6y = 16
A. (1, -1.5)
B. (0, -4)
C. (1, 0)
D. No solution
Answer: D
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Solve the problem.You travel a toll road that requires 45 cent tokens. If you purchase a special express sticker for $9, it is possible to use the express lane, for which tokens are only 30 cents. At which point is the express plan cheaper?
A. After 55 trips on the road B. After 60 trips on the road C. After 65 trips on the road D. After 30 trips on the road
Find the domain and range of the inverse of the given function.f(x) = 
A. Domain and range: all real numbers B. Domain: [0, ?); range: [9, ?) C. Domain: [9, ?); range: [9, ?) D. Domain: [9, ?); range: [0, ?)
Use Simpson's Rule with n = 4 steps to estimate the integral.
A. 25
B. 100
C. 50
D. 
Graph the exponential function.y = - 
x 
A. 
B. 
C. 
D. 