Show and explain your work below the problem. Mr. Williams has a recipe for Rice Crispy treats that serves 30 people. He only needs to serve 20 people. How can he change each ingredient to make only 20 servings?

2 cups of melted butter
24 oz of marshmallows
12 cups of Rice Crispy cereal

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?

Change negative exponents to positive, then solve