Mauricio hits a baseball 4 times as often as tony each game. he also hits 20 baseballs every monday at practice. how many baseballs will mauricio hit this week if tony hits 4 balls at the game saturday?

Tim's phone service charges $26.39 plus an additional $0.21 for each text message sent per month. if tim's phone bill was $31.64, which equation could be used to find how many text messages, x, tim sent last month?