What are the unknowns in this problem?

a problem states: "there are 2 more horses than cows in a field. there are 15 animals in the field in all. how many horses are there in the field? "

select each correct answer.

a. the total number of animals in the field

b. the total number of horses in the field

c. the total number of farmers in the field

d. the total number of cows in the field

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?

Astudy was interested in determining if eating milk chocolate lowered someone's cholesterol levels.ten people's cholesterol was measured. then, each of these individuals were told to eat 100g of milk chocolate every day and to eat as they normally did. after two weeks, their cholesterol levels were measured again. is there evidence to support that their cholesterol levels went down? how should we write the alternative hypothesis? (mud = the population mean difference= before - after)a. ha: mud = 0b. ha: mud > 0c. ha: mud < 0d. ha: mud does not equal 0

The graph shows how many words per minute two students read. drag to the table the unit rate that matches each graph.