Choose the proper steps needed to solve the following equation and give the solution for k:
k + 6k = 21.
1) subtract k, then divide by 6
2) combine like terms, then divide by 6
3) combine like terms, then then subtract 7
combine like terms, then divide by 7

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?