25% because 19+57= a total of 76 students and the percentage of 19 out of 76 is 25%.
19/76= 0.25
Answer:

Step-by-step explanation:
Given


Required
The length of the diagonals
First, calculate the length of AB using:

So, we have:




The diagonal of a square is calculated using:

Where x is the length of each side.
So:


-- approximated
Answer:
27
Step-by-step explanation:
18 divided by 2/3
Answer: 2711×10^-10
Step-by-step explanation: