Answer:

Step-by-step explanation:
the third option
Answer:
The solutions are (-√6,0) and (√6,0)
(-√5,-1) and (√5,-1)
Step-by-step explanation:
The equations are:

and

We make y the subject in the second equation to get;

We substitute into the first equation to get:


and 
The solutions are (-√6,0) and (√6,0)
(-√5,-1) and (√5,-1)
4x - 13 = 2x + 9
Add 13 to each side
4x = 2x + 22
Subtract 2x from both sides
2x = 22
Divide both sides by 2
x = 11
Answer:

Step-by-step explanation:
Since 1pt = 2qt, 2.75pt = 5.5qt