Which symbolic mapping statement corresponds to the verbal mapping statement "A figure is dilated by a factor of 2, and the center of dilation is the origin"? (2x,2y)↦(x, y)
(x, y)↦(x,2y)
(x, y)↦(12x,12y)
(x, y)↦(2x,2y)

49xy +34y - 72z. determine the degree of the polynomial

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?

Which must be true in order for the relationship △zyv ~ △xwv to be correct? zy ∥ wx ∠z ≅ ∠y and ∠w ≅ ∠x zv ≅ vy and wv ≅ vx ∠z ≅ ∠x and ∠w ≅ ∠y