An isosceles triangle has two sides and one short side is half of the length of the long sides, if the perimeter of the triangle is 15cm, find the length of the short sides. ​

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