Determine weather each pair of triangles are similar. justify your answer

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

Guests at an amusement park must be at least 54 inches tall to be able to ride the roller coaster. which graph represents the set of heights that satisfy this requirement?

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much