Answer:
7.8
Step-by-step explanation:
I'd explain but you said ASAP.
i have no clue ill try to help
x = -1, -1/2
Hey there!!
80% = 80/100 = 0.8
80% of 'n' = 72
0.8n=72
n = 72/0.8
n = 90
Hence, the number is 80!
Hope it helps!