In a group of 34 students, 12 study Art and Biology. 14 study Biology but not Art.
5 study neither subject.
Given that the randomly selected student studies Art, what is the probability the student studies Art and Biology?

Lin is shopping for a couch with her dad and heard him ask the salesperson “how much is your commission? ” the salesperson says that her commission is 5 1/2% of the selling price. a. how much commission will the salesperson earn by selling a couch for $495? b. how much money will the store get from the sale of the couch?

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?