D={1,2,3,4,5,6,7,8,9,10} e={2,3,5,7,11,13,19,23} f={4,8,12,16,20} encontrar d interseccion e, f diferencia d y d union(e union f)

700 miles the train takes 5 hours to a travel the distance at what unit rate is the train traveling?

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

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