Evaluate the expression described below if the number is 4. the difference between a number squared and the number.

For [tex]f(x) = 4x+1[/tex] and [tex]g(x) = x^{2} -5[/tex] find [tex](f[/tex] ° [tex]g)[/tex][tex](4)[/tex]

Write an equation of the line given the two points below (write your equation in slope-intercept form, y=mx+b): (-4, 4) and (6, -4)

If 10 men take 18 days to mow 60 acres of grass, how long will 15 men take to mow 80 acres?