Answer:
Percent of increase=11.8%
Step-by-step explanation:
It is given in the question that Tito bought a rare album for $68.00 and later sold it for $76.00 .
So increase in price is the difference of selling price and the buying price. That is,
And the percentage is
And that's the required answer.
ANSWER :
Watch that , for option 1 , 3 and 4 there is two values of Y for same X . That is not possible at all. Because How can a function gives you two different output as for same input ? So it is very Clear that Option 2 is a function and the other are not function. I have marked Which are function and which are not.
