ANSWER

EXPLANATION
The given vector is v = −14.5i + 2.5 j.
The magnitude of this vector is



The unit vector in the direction of this vector is



Identity Property of Zero!
I hope this helps xD
The answer is 33%. To work out a percentage increase we work out the increase, so the difference between 12 and 16 is 4. We divide this by the original amount (12) and times it by 100, which gives you 33.333(recurring) which is rounded to 33%. Hope this helps!