The statement of theorem should be in what form? if-then then-if maybe-conclusion does not matter

If/then.

Step-by-step explanation: A theorem is a statement that has been proven on the basis of other statements, for example other theorems, which are known to be true.

We use the pattern "If A, then B..." when we known that "A" is a statement that is true and we want to declare that since A is true, B should also be true.

30 mi.

Step-by-step explanation:

if it says 1/2in is 10mi. then you just see how many 1/2in are in 1 1/2 and then multiply it by 10mi.

there are 3  1/2in in 1 1/2, so when you multiply it by 10 you get 30.