Carefully study the charts showing how much it cost to raise a child in 1960 and in 2015. What conclusions can you draw from this data?

In 1960 you spend 202 dollars, In 2015 you spend 233 dollars.

Explanation:

Why is that? If you look closely you can see, that education and health care is more expensive in 2015 than in 1960. But, food, clothes, miscellaneous, housing cost more in 1960. Why is that? Because, in 1960 there wasn't a lot of clothes, food, houses, vehicles, medicine, not a really good education. But in 2015 a lot of things has changed, we got way more food, clothes, vehicle, houses. We have better medicine. That's the answer.

the answer would be the third option, "no, ariel should have added 9^2 and 12^2 and compared that to 15^2."

this is found through the pythagorean theorem, which is a^2 + b^2 = c^2.

this is the correct way of solving the problem:

9^2 + 12^2 = 15^2

81 + 144 = 225

225 = 225