Answer:
3
Step-by-step explanation:
Here's the rundown of values:
12=9
9=6
6=3
3rd value=3
*The values are created through going through the numerical process.
3/7 = x/28....3 pies to 7 cups = x pies to 28 cups
cross multiply because this is a proportion
(7)(x) = (3)(28)
7x = 84
x = 84/7
x = 12.......so 28 cups of flour will make 12 pies
A, because you take 0.04 and 0.08 and add them together. you get 0.12 which can be converted to 12% or A