Wang Hao wants to spend at most \$15$15dollar sign, 15 on dairy products. Each liter of goat milk costs \$2.40$2.40dollar sign, 2, point, 40, and each liter of cow's milk costs \$1.20$1.20dollar sign, 1, point, 20.

2.40G + 1.20C ≤15

Step-by-step explanation:

The inequality function is

Given that

The cost of goat milk for each liter is $2.40 = G

And, the cost of the cow milk for each liter is $1.20 = C

Now the equation would be

2.40g + 1.20c

Now this must be lower or equal than $15

So, the inequality function would be

2.40G + 1.20C ≤15

hence, the inequality function is 2.40G + 1.20C ≤15

a = 11 : 4

b = 38

c = 1 for every 6

sorry, i can't understand your question. will later if you describe more clearly!

: )