Question

I’m so confused with this!!!

Answer 1

When you multiply a vector by a scalar, you distribute the scalar to the vector's components:

$k\langle a,b\rangle=\langle ka,kb\rangle$

In this case,

$\mathbf u=\langle25,-30\rangle\implies-\dfrac25\mathbf u=\langle-10,12\rangle$

so the answer is G.