Answer:
45
Step-by-step explanation:
year 1 : 18 in
every year after that he grows 3 in so 3 in so 3x9=27
then 27+18=45
Polynomial-An expression of two or more algebraic terms, which is the sum or difference of the several terms with having different power of the only variable. The difference between the given polynomials is

Given-
We have given two function of variable <em>x </em>and <em>y</em>


<h3>Polynomial</h3>
An expression of two or more algebraic terms, which is the sum or difference of the several terms with having different power of the only variable.
Now we have to subtract the two equations to find the difference,

Multiply the sign into the bracket to open the bracket and further solution,

Arrange the similar terms in the same groups,


Hence, the difference between the given polynomials is
For more about the polynomials, follow the link below-brainly.com/question/17822016
Answer:
Step-by-step explanation:
LCM of 3 and 6 = 6
2/3 = (2×2) / (3×2) = 4/6
4/6 = (4×5) / (6×5) = 20/30
5/6 = (5×5) / (6×5) = 25/30
Hence, 21/30, 22/30, 23/30 and 24/30 are four rational numbers between 2/3 and 5/6.
Once you do the math the answer will be
y=9/7x-11/7