Which is the correct algebraic expression for each phrase? 13 times the cost of one ticket * A. t ÷ 13
B. t - 13
C. 13 + t
D. 13t

What is the value of 1/3x + 7x when x = 5

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0