What is the average rate of change for the given function from x=-1 to x=2

a. -2
b. -1
c. 1
d.2

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.

W-16=-12 solve each one step equation plz

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?