Find the earnings for giving a haircut and a shampoo to m men and w women. Women Men Haircut $45 $15 Shampoo $12 $7 . The earnings are $?

We will determine the earnings as follows:
*First, we determine the total earnings from women and men, that is:
[tex]45w+12w=57w[/tex]And:
[tex]15m+7m=22m[/tex]So, the total earnings for "m" men and "w" women is:
[tex]E=57w+22m[/tex]So, the earnings is $ 57w + 22m.