deandre brought a desktop computer and a laptop computer. before finance charges, the laptop cost 300 more then the desktop. he paid for the computers using two different financing plans. for. the desktop the interest was 9%per year, and for the laptop it was 7% per year. the total finance charges for one year was 365. how much did each computer cost before finance charges?

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.