I need help with this.

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

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

On a architect's drawing of a house, 1 inche representa 1.5