What is the expression for "the difference of five times a number and twice that number"?

5(2 - n)
5n - 2n
2n - 5n
5(n - 2)

Solve for n? [tex]z = \frac{3}{4} mn[/tex]

The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.

If x varies directly as y, and x = 7.5 when y = 10, find x when y = 4