Question 887957
b, s, j, their rates.
{{{j}}} by itself.
{{{s=j+2}}}
{{{b=s+4=j+2+4=j+6}}}


Each works 10 hours and their total is 440 dollars.


{{{highlight_green(10j+10(j+2)+10(j+6)=440)}}}.
How is that?  You can do the rest.