You just need to substitute 4(2)-2(5)/2
8-10/2
8-5
=3
Answer:
He needs 56c of lemon juice to make 4 salad dressings.
Step-by-step explanation:
We only need to look at how much lemon juice to make one salad dressing which would be 14c so we have to make 4 so we would do 14x4 to get how much lemon juice you need to make 4 dressings so you would need 56c of lemon juice to make 4 dressings
Evaluating functions means to substitute the values at every occurrence of x.
So, we have

You didn't specify where we should evaluate g(x).
18------10+8
20------20+1
10+8+20+1=39
Hope that helped:)