What are the x intercepts of h(x) in h(x) = -x(x-2)

Find the magnitude, correct to two decimal places, made by each of the following with positive direction of the x axis a) y= x the answer is 45° but i don’t know how

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd

You dug a hole that was 8 feet deep. after taking a short break, you dug down 3 more feet in the same hole. when finished digging, a tractor accidentally filled the hole with 4 feet of dirt. how deep is your hole now?