Roberto reads 1/4 of the number of pages in a book. Manny reads 1/4!of the number of pages in a different book. Roberto says Manny and he read the same number of pages because 1/4=1/4.

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.