A state accountant models that sales tax revenue grew about 15% per year for several years. Then 2 years ago, when the revenue was $2.1 billion, the revenue began growing by $179.5
million per year instead. About how much less would the revenue be this year than if it had
continued growing 15% per year?

the correct answer is

c. 4

step-by-step explanation:

the given polynomial is

the degree of the polynomial is the highest exponent which is 4.

the -4 is called the leading coefficient.

this polynomial has only one term so it is a monomial.

the correct answer is option c.

if you was gonna solve for a, a is a   < -12