Acompany rents out 15 food booths and 20 game booths at the county fair. the fee for a food booth is 100$ plus 5$ per day. the fee for a game booth is 50$ plus $7 per day. the fair lasts for d days, and all the booths are rented for the entire time. write and simplify an expression for the amount in dollars that the company is paid.

answer: okw

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