Зm - (3n + 10m)
simplified?

3m + -1(3n + 10m) = 0

Step-by-step explanation:

:Just simply add a 1 next to the negative sign to make -1

:Then add a 0 to the end of the equation so you can soon solve

:Then you just start simplifying

Once you start to solve you should get... 3m + -10m = -7m

$77.40

Step-by-step explanation:

Take 6.75% of $72.59 to get $4.90

Add $4.90 to the bill to get a final total.

Also, just as a side note - Each person would pay $29.67 each , if you get this question as well

Hope I helped! Remember to smile!