If p(a) = 0.65, p(b) = 0.58, and p(a and b.= 0.76, then p(a or b. is:

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?

Ann and betty together have $60 ann has $9 more than twice betty’s amount how much money dose each have

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?