Mary is baking a cake. The recipe calls for 7 cups of flour. She already put in 3 cups. How many more cups does she need to add?

4

step by step if she has 7 cups and already put in 3

7-3=4

125 yards

step-by-step explanation:

i take 75 plus 50.

9 sandwiches per hour

step-by-step explanation:

when we have a rate, we want a 1 in the denominator

27/3 = 9

27 sandwiches/ 3 hours = 9 sandwiches/hour