Solve the system by substitution.
y=2x
-3x + 8y =26

Select the correct answer. in the figure, angle k measures 45°. what is the measurement of angle c? a. 38° b. 45° c. 90° d. 98°

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

Carley bought a jacket that was discounted 10% off the original price. the expression below represents the discounted price in dollars, based on x, the original price of the jacket.