Roast beef has 25 g of protein and 11 g of calcium per serving. a serving of mashed potatoes has 2 g of protein and 25 g of calcium. how many servings of each are needed to supply exactly 29 g of protein and 61 g of calcium?

Angle xyz is formed by segments xy and yz on the coordinate grid below: a coordinate plane is shown. angle xyz has endpoints at 3 comma negative 1 and 6 negative 2 and 3 comma negative 3 and measures 36.87 degrees. angle xyz is rotated 270 degrees counterclockwise about the origin to form angle x′y′z′. which statement shows the measure of angle x′y′z′?