Sally is baking a cake. The recipe calls for 9 cups of flour. She already put in 3 cups. How many more cups does she need to add ?

6 cups.

Step-by-step explanation:

9-3=6

she already added 3

there's 9 total

6 more to add

.

step-by-step explanation:

.

if y=4x then you will substitute 4x in for y in the second equation.

8x + 4x = 18 combine like terms

12x = 18 divide by 12 on both sides

x = 18/12 or 3/2

now replace x in the first equation with 3/2 to get

y = 4 3/2

y = 6

the answer is a

(3/2,6)

hope that .

brainliest is always apprectiated