For this case we have the following expression:

Rewriting the expression we have:

Where,
x: exponent to which we must raise the expression to obtain 7 as a result.
We have then:

The exponent must be equal to 1:

Clearing x we have:

Substituting valres:
Answer:
you must raise the expression to 2
You cut the cookie in 4 parts and give them 3 pieces
(0,3) because if you go up six on the Y axis you get three. If you go two over on the X axis you reach zero.