Answer:
14cm
Step-by-step explanation:
times by 2
-0.91 is mostly likely the correlation coefficient for the set of data shown
1/20 were striped if you want that as a decimal it would be 0.05 :)
The Definition of Porcentage is given by:
Where Vx is discounted value or increased, and Vt is total value. The discount decreases the "p" value.

If you notice any mistake in my english, please let me know, because i am not native.