Leo subscribes to a monthly app service that charges him $6 for one month, and each app he purchases costs $0.90. Lara subscribes to a service that charges $1.50 per app with no additional monthly fee. After how many apps will they have the same monthly bill?

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?

Astore is having a sale in which all items are reduced by 20 percent. including tax, jennifer paid $21 for a pair of shorts. if the sales tax is 5 percent, what was the original price of the shorts

If wxyz is a square, which statements must be true? plz < 3