Answer:
Look at the image below.
Step-by-step explanation:
Answer: I think your answer is A. 1.8
Step-by-step explanation:
Not 100% sure but 90% though
<em>I HOPE THIS HELPS</em> sorry if its wrong
Answer:

Step-by-step explanation:
y=x^2-x+1
We want to solve for x.
I'm going to use completing the square.
Subtract 1 on both sides:
y-1=x^2-x
Add (-1/2)^2 on both sides:
y-1+(-1/2)^2=x^2-x+(-1/2)^2
This allows me to write the right hand side as a square.
y-1+1/4=(x-1/2)^2
y-3/4=(x-1/2)^2
Now remember we are solving for x so now we square root both sides:

The problem said the domain was 1/2 to infinity and the range was 3/4 to infinity.
This is only the right side of the parabola because of the domain restriction. We want x-1/2 to be positive.
That is we want:

Add 1/2 on both sides:

The last step is to switch x and y:



Answer:
The 20% tip would be 18%
The 80% mark down would be 0.8 I think
The 60% I'm not sure for the 60% one
The 10% I'm not sure for that one but I think it would be 3.75
I think for 75% mark down it would be 0.7 I'm not sure tho and I'm not sure for the rest
Sorry if I'm wrong but hope this helps:)
2 - 7 = -5
8i - 2i = 6i
-5 + 6i is your answer
hope this helps