Asp help will give brainliest

One line passes through (-7,-4) and (5,4) . another line passes through the point (-4,6) and (6,-9)

Bob paid $3 less than tim at a local pizza parlor. together they spent $7.80. how much did bob pay for pizza?

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.