Jonas types 560 words in 20 mins. how many words can he type in one hour

Pls , the question is in the picture!

Evaluate cos2θ for cosθ = square root of 3/2

Zoey made 5 1/2 cups of trail mix for a camping trip. she wants to divide the trail mix into 3/4 cup servings. a. ten people are going on the trip. can zoey make enough 3/4 cup servings so that each person gets one serving? b. what size would the servings need to be for everyone to have a serving?