I'm honestly not really sure, but it has to be either (2,10) or (10,2). I've never seen a question like this...
Answer:
Step-by-step explanation:
That's a rectangular prism.
And the formula to find the volume of a rectangular prism is:

Plug in what we know:

Multiply the three numbers together:
The third option I believe
Answer:
a. When two variables change in the same direction, one remaining larger than the other by the same factor - direct relationship
b. To insert between neighboring points or estimate by taking an average of known values - interpolate
c. A relationship between two variables in which the product remains constant. When one variable increases the other decreases in proportion so that the product is unchanged - inverse relationship