1. Use the FOIL method (x+9)(x+9)
First, outer, inner, last

Add your like terms

2. When you add or subtract polynomials you add or subtract the like terms and then put them in order from largest to smallest exponents.
3.

4. Since it is the perimeter, we add the 3 together.

Add the like terms together:

Put them in order of exponents

Hope this helps
Answer:
103 and 102
Step-by-step explanation:
u add them together
So in 30 min will hike 2 1/4 miles =9 of those 1/4 miles therefore in 10 min will hike 9/3 =3 of those 1/4 miles = 3/4 of a mile
3/4 mile in 10 min;
(3/4)• 4 = 3 miles in 40 min;
6 miles in 80 min;
9 miles in 120 min;
12 miles in 160 min;
15 miles in 200 min;
18 miles in 240 min or 4 hours
Answer:
25500 people
Step-by-step explanation:
We are given;
Number of people is 19125
The percentage representing the number is 75%
We need to determine the total population;
The total population will be 100%
Therefore;
If 75% = 19125 people
Then, 100% will represent;
= (19125 ÷ 75) × 100
= 255 × 100
= 25500 people
Therefore, the total population of the town is 25500 people