Match the system of equations with their solution sets

Which of the following represents the range of the graph of f(x) below

Determine which postulate or theorem can be used to prove that lmn =nmo

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same