PLEASE ANSWER ALL QUESTIONS 69 POINTS WILL MARK BRAINLIST

Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.

The coordinates r(1, -3), s(3, -1) t(5, -7) form what type of polygon? a right triangle an acute triangle an equilateral triangle an obtuse triangle

The track team ran a mile and a quarter during their practice how many kilometers did her team runs?