r2 or r to the power 2 or just r squared.
63% / .63
It is 16.
16
42
4/10
1 and 11 over 100.
1.3(the 3 has a line over it.)
9 squared is another way of stating the equation 9 X 9, and 10 squared is another way of stating the equation 10 X 10. Find the answers to these equations, add them together, and you will have the answer.
1/3 or 0.3 or 30%
.75 or 3/4 or 75%
2/3 or .6 repeated.