Cliff is trying to make a set of parallel lines in a coordinate plane intersect at a perpendicular angle. Which strategy would work? A) Only rotate one line
B) Translate them to the right
C) Rotate them 180°
D) Reflect them across the X-axis

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?