What is the exterior angle measure of a regular 18-gon

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 simplified form of (3.25x10^3)(7.8x10^6) written in scientific notation?

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42