What is the association between the x- and y-values for each graph?

Which equations represents circles that have a diameter of 12 units and a center that lies on the y-axis? check all that apply

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?

Add the fractions and simplify 1/2+ 1/3