mike mixed eleven ml of a salt solution with ten ml of a forty two percent acidic solution, to make a forty eight percent acidic solution find the percent concentration of the first solution

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