Find the Dot Product for the Pair of Vectors $7 \mathbf { i } - 2 \mathbf { j } , 8 \mathbf { i } + \mathbf { j }$

Multiple Choice

Find the dot product for the pair of vectors.
- $7 \mathbf { i } - 2 \mathbf { j } , 8 \mathbf { i } + \mathbf { j }$

A) 58
B) $- 9$
C) 0
D) 54