Are they any given ones ?
The writing is confusing, but as I understand it 21 is about 20% of 104 (21x100/104). The same prosentage of 500 equals 100,96 and I would round it to 101 (the answer of the first equasion x 500/100).
Answer:
(3,-5)
Step-by-step explanation:
I'm pretty sure sorry if I'm wrong