What is deviation from mean

Aparking lot is to be 400 feet wide and 370 feet deep. how many standard-sized cars fit in this lot considering a double-loaded (w4) two way traffic set up, an angle of 90° and a sw of 9’ 0’’? (do not consider handicapped parking spaces, and consider 15’ for turning aisles). show your work.

This is the number of parts out of 100, the numerator of a fraction where the denominator is 100. submit

What is the area of the triangle 10 13 12