An equivalent expression for 16x − 8

Nell has a sales clerk job that pays $12 per hour for regular gas work hours. she gets double time for any hours over 40 that she works in a week. how many hours did nell work if her weekly pay was $744

For f(x)=2x+1 and g(x)= x^2 -7, find (f•g)(x)

Which of the following points is collinear with (-2,1) and (0,3)