Two planes started at the same time from two airports which are 2300 miles apart and flew toward each other. one plane few 310 mph, and the other flew 390mph. in how many hours were the planes still 200 miles apart?

Masons cell phone company charges $0.12 for every text message he sends plus $2.50 per month if mason sent 25 messages this month how much money does he owe the one with the correct answer and explanation gets 10 points and is marked as the brainliest answer