Which pair of expressions are equivalent? a. 2y – 4 and 2y – 4 + 9 b. 14x – 7 and 7x – 14 c. 9y + 3 + 2 and 3(y + 1) + 2 d. x + y and x – y + 2y e. x + 2y and x – y

X+ y = 5 ; x - y =3 solve using linear combination

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?

What is the inverse of the function f(x) = 2x + 1?