Answer:
The 2 option :)
Step-by-step explanation:

First, subtract '11' from each side.

Second, subtract '29 - 11' to get '18'.

Third, since we are solving for f, we have to get it by itself. Multiply each side by 'f'.

Fourth, once again, we need to get 'f' alone. Divide both sides by 18.

Fifth, now that we have 'f' by itself, we can simplify the current fraction. To do so, we need to start off with listing the factors of 4 and 18 and find the greatest common factor (GCF).
Factors of 4: 1, 2, 4
Factors of 18: 1, 2, 3, 6, 9, 18
Out of the listed factors, 1 and 2 are the common factors, and since 2 is the highest number out of them, it is considered the greatest common factor. The GCF is 2.
Sixth, divide the numerator and denominator by the GCF (2).

Seventh, we can now rewrite our fraction in simplest form and switch sides.

Answer in fraction form:

Answer in decimal form:
Since you're given the base for the perimeter of the rectangle, you can solve this question quickly.
First, you multiply 21 by 2, because there are two bases to a rectangle.
You'll get 42, and you will have to do 60-42 to find the perimeter for the remaining two sides.
60-42 will give you 18, so you can divide that by 2 because there are two other sides, giving you 9.
Now you have the side lengths 21 and 9. Area is base*height, so you can multiply 21*9 and get 189.
Therefore, the area of the rectangle is 189 meters
Answer:
it is 69
Step-by-step explanation:
do calculations