Roberto paid $43.08 for 3 cds. all 3 cds were the same price. how much did each cd cost

Someone this asap for a group of students attends a basketball game. * the group buys x hot dogs at the concession stand for $2 each. * the group buys y drinks at the concession stand for $3 each. the group buys 29 items at the concession stand for a total of $70. how many hot dogs did the group buy?

Standard deviation of 19,29,21,22,23

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?