HELP PLS!! ASAP (problem in picture.)

The standard distance between studs in a house is 1.5 feet. if you have a set of blueprints for a house that mark every 1.5 feet with 2 in., by how many inches will a 13-foot wall be represented?

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

For a field trip to the zoo, 4 students rode in cars and the rest filled nine busess. how many students were in each bus if 472 students were on the trip