Answer:
For 
, Leading coefficient is -2, Degree is 2, Constant term is 0
For 
, Leading coefficient is -25, Degree is 2, Constant term is 9
For 
, Leading coefficient is 1, Degree is 5, Constant term is -1
Step-by-step explanation:
Given:
Polynomials:
To find: leading coefficient, constant term and degree
Solution:
Leading coefficient is the coefficient of the variable with the highest power.
Degree is the highest power of the variable.
The term of degree 0 is the constant term of a polynomial.
For ,
Leading coefficient is -2
Degree is 2
Constant term is 0
For
Leading coefficient is -25
Degree is 2
Constant term is 9
For
Leading coefficient is 1
Degree is 5
Constant term is -1
Given:
Initial cost of living = $44,000
Rate of increase = 5% = 0.05
To find:
The cost of living in 20 years.
Solution:
The exponential growth model is:
Where, a is the initial value, r is the growth rate and t is the number of years.
Putting 
in the above model, we get
Therefore, the cost of living in 20 years is about $116745.10.
The first one is 18.5. That was a result of dividing decimals.
Second one is $4.82 because you are trying to find the unit rate.
Third is 2608.75 dollars earned. You multiply the number of memberships with cost, 152. Now you add that with the monthly earnings, resulting in that answer.
