Find the following quiz average for a class of 20: on a quiz worth 5points, four students earned a 5, seven students earned a 4, six students earned a 3, two students earned a 2, and one student earned a zero.

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

The weight v of an object on venus varies directly with its weight e on earth. a person weighing 120 lb on earth would weigh 106 lb on venus. how much would a person weighing 150 lb on earth weigh on venus?

Solve 13 + w/7= -18 (w/7 is a fraction)