Answer:
balance is 839.54
Step-by-step explanation:
I think x would equal 7 because when y=75 and x=25, x is one third of y so one third of 21 is 7
Answer:

Step-by-step explanation:
Given

Required
The polynomial function
If a function has a, b and c as its zeros, the function is:

So, we have:


Open the inner brackets

Expand the difference of two squares

Expand

I believe the answer is D b/c each input has one output