Answer:
Step-by-step explanation:
When given an x value (x=4 or anything else) you substitute it into the equation to get the answer that would equal y.
Example: x=4
y=0.9x
y=(0.9)(4)
multiply
y=3.6
103,776 ways
WHY? IS IT A JOKEEEEEEE
23/30
Hope this helps :)
