Answer:
1. a
2. c
3. e
Step-by-step explanation:
1. a because she ran 5 miles on friday and ran x miles before friday. we know she had ran a total of 20 miles so we have x+5=20
2. there is a total of 20 clubs andre's school, 5 times more than is cousin's school. we have 20 =5x
3. 20 cats get 5 cups of food. each got an x amount. we get 5 =20x
