Answer:
your answer is 1!
The gcf of 7 and 9 is the largest positive integer that divides the numbers 7 and 9 without a remainder. Spelled out, it is the greatest common factor of 7 and 9. Here you can find the gcf of 7 and 9, along with a total of three methods for computing it. In addition, we have a calculator you should check out. Not only can it determine the gcf of 7 and 9, but also that of three or more integers including seven and nine for example. Keep reading to learn everything about the gcf (7,9) and the terms related to it.
What is the GCF of 7 and 9
If you just want to know what is the greatest common factor of 7 and 9, it is 1. Usually, this is written as
gcf(7,9) = 1
The factors of 9 are 9, 3, 1.
The factors of 7 are 7, 1.
The common factors of 9 and 7 are 1, intersecting the two sets above.
In the intersection factors of 9 ∩ factors of 7 the greatest element is 1.
Therefore, the greatest common factor of 9 and 7 is 1.
10
The slope of all parallel lines is equal. 10 is the slope in the equation y = 10x - 20, so the slope of a line parallel to it has to be 10 also.
Perimeter Formula:

Area Formula:

Set perimeter Formula equal to b:

Plug formula for be we just made above into the area Formula:

Solve for L (you'll have to use quadratic formula) then plug that back into the area Equation and solve for b.
Here's a link to where the problem has been explained before (they go into more detail than me).
https://brainly.ph/question/468631
lmk if you need any more help
Answer: 777600
Step-by-step explanation:
you times 12 by 4 then you times 3000 by 5.4 and add the two answers