cell phone company A charges an $80 deposit and $10 each. month for unlitmited service. cell phone company Charges a $70 deposit and $12 each month for unlimited service. after how many months will cell phone company A cost more then cell phone company B?

The triangles are similar. what is the value of x? show your work.

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days