If i earn $255 dollars in 6.8 hours how much will i earn in 28.4 hours work this problem out and show me how its done

Divide 255 by 6.8 = 37.5 multiple it with 28.4 = 1,065

Hello,

This is called in french
une règle de Trois ( rule of three)

For a time of in hour>you earn  in $
6.8>255
1>255/6.8
28.4>255/6.8 * 28.4=1065 ($)