Name at least two independent variables that could result in a change in a monthly electric bill.

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?

X+ y = 5 ; x - y =3 solve using linear combination

Which table shows a proportional relationship between miles traveled and gas used?