The school band will sell whole pizzas to raise money for new uniforms. the supplier charges $100 plus $4 for each whole pizza. the band members sell whole pizzas for $7 each. what is the minimum number of whole pizzas the band must sell to make a profit?

x < 16

Step-by-step explanation:

Let the number be x

Four time the number = 4x

Eight less than four times the number = 4x - 8

Eight less than four times the number is less than 56,

          that is , 4x - 8  < 56

                      4x - 8 + 8 < 56 + 8                    [ adding both sides by 8 ]

                        4x + 0 < 64

                              4x < 64                             [ divide both sides by 4 ]

                                 x < 16