If 2+5+5 = 51, 3+7+3 = 61, 5+4+3 = 91, 2+7+3 = 31 then 6+7+3 = ?​

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.

If the discriminant if a quadratic equation is 4 which statement describes the roots?

Which property was used to simplify the expression? 3c+9 +4c=3c+4c+9