Which expression has a negative value? mike saves $42 a week for 7 weeks. during his 8-day vacation, he plans to spend $8.25 each day for snacks. which expression shows how much money he will have left?

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.