If the majority of the residents of the apartment complex complain that their apartments are infested with ants, then the management of the complex will have to engage the services of an exterminator  But the majority of the residents of the complex indicate that their apartments are virtually free of ants
Ttherefore, the management of the complex will not have to engage the services of an exterminator
Either the school's principal or two-thirds of the parent council must approve a change in the school dress code in order for the code to be changed. Since the principal will not approve a change in the dress code, the code will not be changed.