Question

Need done fast. it is easy just for points

Answer 1

In mathematics, a percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", or the abbreviations "pct.", "pct"; sometimes the abbreviation "pc" is also used.[1] A percentage is a dimensionless number (pure number).

% girls = (45 / 80) * 100
= 56.25 %