P-$15=her total bill
hope this helped
Answer:
10
Step-by-step explanation:
As we can see in hint through it we can identify that it is right angled triangle so here
AB = 6
FE = BC ( being corresponding sides of congruent triangle)
BC = 8
Now In triangle ABC
perpendicular (p) = 6
base (b) = 8
hypotenuse (h) = ?
By using Pythagoras theorem we get
h = √ p² + b²
= √ 6² + 8²
= √ 100
= 10
So Now
AC = h = 10
Hope it will help :)
It looks like we're told that
We use the fact that 
is linear to find 
. First, we notice that
We also have
So once we find 
, we can determine 
and 
. We have
and using this we find
Then
