HELP PLZ ITS URGENTTT

There are 85 apples on the big tree, john picked out 15%. how many did john pick out?

Find the slope of the line that passes through the points (0, 0) and (-2, -3). 2/3 3/2 -3/2

15. jiovanni is looking in to two different companies that offer study guides for math exams.test prep 101 charges a $5 flat fee and an additional $0.25 per problem.math charges a $2 flat fee and an additional $0.50 per problem.how many prablems would make the costs of the two companies be equal? varibles: equations/eniqualities{ {