Answer:
Complete solution is given in the images attached below for better demonstration
100%/x%=80/20
(100/x)*x=(80/20)*x - we multiply both sides of the equation by x
100=4*x - we divide both sides of the equation by (4) to get x
100/4=x
25=x
x=25
<span>The 6 means we round the 7 up to the next number which is 8. Thus, we round 4.76 to </span>4.8