An infants weight was 10.5 pounds at one month and 15.3 pounds a few months later. what is the percent of increase of the infant's weight to the nearest tenth?

Alana has 12.5 cups of flour with which she is baking four loaves of raisin bread and one large pretzel. the pretzel requires 2.5 cups of flour to make. how much flour is in each loaf of raisin bread? explain the steps to follow to get the answer.