Answer:14
Step-by-step explanation:
Y=6+2x
Since y equals the total cost, it will be on its own in the equation. 6 dollars is a set amount, meaning that no matter how many apples they pick it’ll stay the same. HOWEVER, the cost will change depending on how many pound of apples they get
Every pound of apples is equal to 2 dollars, and since x stands for pounds of apples, it’ll be ( ex: x = 2, so 2x = 2(2) = 4)
So the equation will be y = 6 + 2x
I hope this helps
Let 
and 
. Then
and
The expression under the square root can be rewritten as
Recall that
so that
and assuming 
and 
, we end up with
so that
as required.
2x -20 -1 =0
2x -21=0
2x=21
x= 10.5
<span>-3y+8z your welcome:)</span>
