513 as a percentage of 900 can be re-written as;

= 57 percent
Answer:
LOL
Step-by-step explanation:
144 KILOMETROS....
ANSWER: the answer is 27.5 for this question
Answer:
Mean = sum of all elements/number of elements
= (7.5 + 10.5 + 5 + 4.5 + 3.5 + 7.5 + 4 + 10 + 7.5 + 5)/10
= 6.5
=> Option C is correct
Hope this helps!
:)