3(2x-6) = 18
What is the answer ? Pls I have 10 minutes to get this finished !!

In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ab=9, and ac=12, find hc.

Write the equation of the circle centered at (10,-2) with radius 2.

For every touchdown scored by the timberwolves the mascot does three backflips if the cheerleaders set off six confetti cannons how many touchdowns did the timberwolves score if the cheerleader set of 18 confetti cannons