For what value of b, would the equation 34(12x−9)+b4=5−3(2−3x) have infinitely many solutions?

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50

I’m still confused on how to work the percentages

Use this graph to find the cost of 6 show tickets