The student would get an 80%.
Since 5 is 20% of 25, subtract 20 from 100 and you get 80%
B :) open circle means inequality and it needs to be at least 3 so the line has to increase, meaning the arrow is going right.
Answer:

Step-by-step explanation:
To find the inverse of a function, swap the places of the x and y variables and solve for y again.

Hey there! :D
Remember that the question said estimate.
So
47% rounds to 50%
.5 and 1/2 are equal to 50%
89 rounds to 90.
You could say that:
1/2*90
0.5*90
90/2
These will all work and will give you the same answer.
I hope this helps!
~kaikers