1-part b 2- part b 4- 5- someone i don’t understand

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.

Factor the monomial completely 42a3b3

Write an expression that has three terms and simplifies to 4x - 7. identify the coefficient(s) and constant(s) in your expression