Simplify the expression.5(x - 1) + 15
A. x + 10
B. 5x + 14
C. 5x + 10
D. 5x - 20
Answer: C
Mathematics
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Find the slope of the line.9x - 6y = 7x + 5
A. - 
B. 3
C. 
D. 2
Mathematics
Evaluate the expression.-4 ? 52
A. 100 B. -100 C. -400 D. 400
Mathematics
Solve the problem.Shari enjoyed services at a spa. The total cost of these services was $310. If she decides to leave a 9% tip, how much should the tip be? Round your answer to the nearest cent.
A. $24.80 B. $27.90 C. $279.00 D. $31.00
Mathematics
Find a rectangular equation for the plane curve defined by the parametric equations.x = et, y = e2t; -? < t < ?
A. x = ln y B. y = x2 C. y = ln x D. y = 2x
Mathematics