Hey there!
We can label our unknown number as 'x' until we find out what it is!
x ÷ 100 = 0.57
x × 0.57 = 100
Simplify that above..
x = 57
Answer: 57 ✅
Good luck on your assignment and enjoy your day!
~LoveYourselfFirst:)
Side note: percentages run out of 100