Question 1128088
The restaurant bill you and your friend received was not itemized. You ordered 2 drink refills and the egg breakfast, for a total of $8.40. Your friend ordered 3 refills and the egg breakfast for $9.35. 
(a)	Write a system of equations for the situation. Use r for the amount charged for a refill and b for the amount charged for the egg breakfast. 
you
2r + b = 8.40
b = -2r + 8.40
friend
3r + b = 9.35
b = -3r + 9.35
(b)	Graph the equations in the system. Please, show where on graph this goes.
 {{{ graph( 300, 200, -6, 7, -4, 12, -2x+8.4, -3x+9.35) }}}
r is on the x axis, cost on the vertical
(c)	Use your graph to estimate how much each item cost.
looks like a refill is about $.95 and breakfast is $6.50