Perry has 525
5
2
5
cups of sugar in order to make sugar cookies. It take
45
4
5
cup to make a dozen cookies. Perry wants to make 8 dozen sugar cookies. How much more sugar does Perry need to buy in order to make all 8 dozen cookies?

4 packs of water and 7 packs of candy bars

step-by-step explanation:

35x4=140

140/20=7

c is the answer

step-by-step explanation:

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