When you have a negative and a positive number in adding what do you do

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.

Find the multiplicative inverse of 8-12i

Solve the inequality and graph 6j - 7 < 5