Mason is baking pies for a school fundraiser. He has 7 ¾ cups of flour in his kitchen. His pie recipe requires ¾ cups of flour for each pie. A) How many pies can Mason make with the flour he has? How much more flour does he need to make the final pie? B) Mason left 1/3 of a pie for his brother Charlie

a 4/6 = 9/12   not proportional

step-by-step explanation:

to find which are not proportional, we can use cross products

if it is true, they are proportional.   if it is not true, they are not proportional.

a 4/6 = 9/12

4* 12 = 6*9

48 = 54

not this is not proportional  

b 2/3 = 12/18  

2* 18 = 3 * 12

36 = 36

this is proportional

c 5/4 = 10/8  

5*8 = 4*10

40 = 40

this is proportional

d 7/5 = 35/25

7*25 = 5 * 35

175 = 175

is proportional