Gwen commutes to work. Her commute is 35 miles each day. On Friday, she drives 28 miles farther than any other day. Her total commute for the week is 203 miles. What equation can be used to find the number of days, x, Gwen commutes to work during the week?

Carmen and matt are conducting different chemistry experiments in school. in both experiments, each student starts with an initial amount of water in a flask. they combine two chemicals which react to produce more water. carmen's experiment starts with 30 milliliters of water in a flask, and the water increases in volume by 8.5 milliliters per second. matt's experiment starts with 10 milliliters of water and increases in volume by 28% each second.