Answer:
7
Explanation:
In y=mx+b
(m) is slope
(b) is y intercept
Since the line is parallel it would have the same slope and in y=7x-89
7 is in the place of (m) so the slope is 7 therefore the slope of the parallel line would be 7 as well.
Hope this helps! If you have any questions on how I got my answer feel free to ask. Stay safe!