Help me & I’ll give ya 40 points

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.

What is the square root of 45? (step by step working plz)

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?