Me! i suck with vectors. look at the attached pictures for the problem.

Multiplying a vector by a constant gives you a new vector whose components are the same as , but scaled by :

So we have

Vector addition is just a matter of adding the corresponding components together:

Then

denotes the norm/magnitude of the vector :

We have

b

step-by-step explanation:

u take $75 minus $60.the anwer/original($75)multiply by 100