Josh made $253 for 11 hours of work. At the same rate, how many hours would he have to work to make $299

The answer is 13.

Step-by-step explanation:

Divide 253 by 11. This gives you the total he makes within an hour, which is 23. Next add 253 and 23 together. This gives you 276. Add 23 again and you get 299. Since you added 23 together twice, that's two extra hour of work. Finally, add 11 and 2 and you get 13.

chad should not have included the values (1, 2) and (3, 6) because that would mean he only had half a healing card.