Solve the Problem $\mathbf { u } = \langle - 3,5 \rangle$

Multiple Choice

Solve the problem.
-If $\mathbf { u } = \langle - 3,5 \rangle$ and $\mathbf { v } = \langle 4 , - 8 \rangle$ , evaluate $\mathbf { u } \cdot ( 5 \mathbf { v } )$

A) $- 265$
B) $- 257$
C) $- 260$
D) $- 188$