Y = 2x - 8
I used a graphing calculator to figure it out.
The number was 160 because 5/4•128=160. 5/4 represents inverting 80% and multiplying it by the number to determine how the result became 128. For checking over all you have to do is do 4/5 or 80%•160 which shall give you 128.
Answer:
Step-by-step explanation:2+2=4