Micheal is taking a survey of students at his high school to find out how many hours they work per week. He surveys all of the students in his freshmen English class. Is this good sampling method

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.

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

George is putting trim around his rectangular deck, including the gate. he will need 44 feet of trim to do the entire deck. if the deck is 13 feet long, how wide is the deck?