There were 10 students in a teacher’s classroom. The next week, there were 17 students. What is the percent increase of the number of students?

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.