Question 285597
(cost/meal)*(meals/month) =  (total cost)/(month)
{{{30*4*2 = Y}}}
Also, 
(number of people)*(times going out to eat/month) = number of meals/month
{{{2x = 8}}}
{{{X = 4}}}
when {{{Y = 240}}}
{{{Y = 60X}}}
I'm not sure if this is what's needed