We often describe winter coats as warm. Or, we say that a thick sweater "keeps out the cold." Are these descriptions correct? Why or why not? (Remember that heat is the movement of energy. So, heat moves, not cold.)

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