Which description of a figure and it’s image match the transformation described by (x, y) —> (x,3y) ? Help ASAP pls

Which of the symbols correctly relates the two numbers below check all that apply 6? 6

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?

At 6 1/2 cents per pound of string beans how much does 7 pounds cost