Answer:
and 
Step-by-step explanation:
Given
[Correct Question]


Required
Solve using elimination
First, we eliminate x.
Subtract equation (1) from (2)




Divide through ny 7

Take 
Make x^2 the subject

Substitute 4 for y



Take square roots


So if you want it to be 9 less than your number (x) then you would subtract nine.
So it would be:
x - 9.
So if your "number" is 12 then you would substitute x for 12 and it would be 12-9. The answer is 3. So 3 is 9 less than a number (12).
I believe
Step-by-step explanation:
the difference is the previous term multiplied by 4 to get the next term
2,8,32,128,512,2048,8192
Hope that helps :)
This is equals 3 and 18/56 which reduces to 3 and 9/28 all you have to do is plug it the calculator like it is shown and then you will get this answer