I WILL GIVE 50 B TO BRAINLIEST! (Im going to be specific, for each letter word problem please tell me the independent and the dependent variable for each one thanks) A. You work part time at a grocery store and are saving money for a car. You already have $200 saved and you earn $12 per hour. B. You are driving on a road trip with your friends. You have 12 gallons of gas in your car and you use 0.10 gallons each mile you drive. C. You got a 60 on your test. You test grade will improve 2 points with each extra credit assignment you turn in. D. You pay $35 a month for your cell phone bill plus an additional $0.25 per text messages sent