You are choosing between two different prepaid cell phone plans. The first plan charges a rate of 33 cents per minute. The second plan charges a monthly fee of $19.95 plus 12 cents per minute. How many minutes would you have to use in a month in order for in order for the second plan to be preferable?

If value of cos330° is √3/2 then find tan165°.

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?

Car a and car b were in a race .the driver of car b claimed that his car was twice as fast as car a