PLEASE HELP ME!! Right a simplified rule for the nth term of the arithmetic sequence with a1=7 and the common difference is 3

Which fraction is not equivalent to 8/12 a. 2/3 b. 24/36 c. 4/10 d. 6/10

If olu is twice as old as funmi if the sum of their ages is 60 how old is olu

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?