the drama club spent $8.50 per person on food for cast party. the total cost of the food was $229.50. how many people were at the cast party

If the drama club spent $8.50 per person on food, and if the total cost of food was $229.50. How many people were at the cast party?

To find how many people are there, we need to divide $229.50 to $8.50.

$229.50 ÷ $8.50 = 27

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