Answer:
g(3.09)=C
Number of Grams of Cheese times 3.09 will = Cost
Answer:

Step-by-step explanation:
Given
See attachment
Required
Find x
The relationship between x, 47 and
is:

i.e.

Solving further:

Make x the subject



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The reasoning would be that it was given because there's no theorem or anything involved it was simply given to you already
Answer:
Like terms:

1.25x²
-8x²
Step-by-step explanation:
Like terms are terms that have the same variable to the same exponent. In this case, the only like terms are those with the variable 'x' to the exponent of '2', or x². This would include the terms:

1.25x²
-8x²
The term 5yx², also includes x², however, it also includes the variable 'y' which makes it 'unlike' the other terms.