Solve for x pls and thank you

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

Which of the following shows the graph of y=2e^x?

If f(x)=3 over x+2 - square root x-3 then f(7)=