what is the equation of a line that is perpendicular to the line shown and goes through the point 3 negative 1

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

Acompany that makes? hair-care products had 5000 people try a new shampoo. of the 5000 ? people, 35 had a mild allergic reaction. what percent of the people had a mild allergic? reaction?

The area of each triangle is 7 square units. the surface area of the triangular prism is