Solve the literal equation for y.
y - 3x = 13

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

If f(x) = 3x2 - 2x+4 and g(x) = 5x + 6x - 8, find (f-g)(x).