I’m thinking it’s B! Sorry if I’m wrong! :)
Is this a system of equations? Lmk in the comments
Discrete data refers to things that come in whole number amounts, whereas continuous data can have fractional amounts. Discrete data would be like the number of books on a shelf. Continuous data would be like the weight of a book in pounds. Since there are not fractions of a step in a stairway, we'd say that this number is discrete data.
I don't know if this is correct or not, but I did 5/8 first to get the decimal and got .625. Then adding the 6, you get 6.625. Then I multiplied 18 by 6.625, and got 119.25 inches.
Again, I don't know if that's right, but that's how I would've solved it.
:)