Which is not generally used to represent a function?
A. equation
B. mapping diagram
C. words
D. graph
E. frequency table
F. input-output table

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