Six times (6.9231).
6, R12
13 ft * 90 ft = 13*90 sq feet = 1170 sq feet.
12
90
Extremely few. If you go on Youtube, a 13 year old threw 93 mph.
There are 90 degree in a quarter turn.
238/45 times.
90
90 / 9 = 10
To get 90% you have to get 13 and 1/2 questions right.
3 to solve this, simply divide 270 by 90