The equation of line r is y = -1\2x - 4. if line s runs perpendicular to line r and passes through (4, -3), what would be the equation of line s?

I'll give brainliest if you answer right : )

This is different from the first one can someone me

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?