Answer:
I think its will be B
Step-by-step explanation:
I’d say 21 tbh unless the sum is half of the brothers age then it would be 9
Let the cost of renting a chair be x and for renting a table be y than 5x + 3y = 31 and 2x + 6y = 52 2x+ 6y = 52 can be further simplified to x + 3y = 26 now try solving for x and y... best of luck:D
The correct option is : no mode
<u><em>Explanation</em></u>
The given data set is: 
The <u>mode is the number that is repeated more often</u> than any other number in the data set.
But here we can see that all the numbers in this data set are different. That means <u>they appear only once</u>.
So, there will be 'no mode' in this set.
The unit rate is 2.33/1 movie. Hope it helps