Find sales tax. jenny bought a shirt for $50 and there is a 15% sales tax

If the dimensions of a rectangular prism are 5 ft x 3.5 ft x 2 ſt, what is the surface area?

Write an equation in slope intercept form of the line passes through the given point and is parallel to the graph of the given equation (0,0); y=3/8 x+2

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?