Answer:
she started with 75 and puts in 15 dollars every week. meaning that she initially deposited $75
I think that it’s 16 probably
Suppose we have a generic polynomial of the form:

To know how many roots the polynomial can have, the first thing you should do is observe the term of greatest exponent.
For this case, the term of greatest exponent is 2.
Therefore, the polynomial has 2 roots.
Answer:
You must observe the term of the polynomial with greater exponent.
Check image below for answer!