Which transformations will produce similar, but not congruent, figures?

triangle tuv is rotated 270° clockwise and then translated 12 units down to form triangle t"u"v" .

triangle tuv is rotated 180° counterclockwise and then reflected across the x-axis to form triangle t"u"v" .

triangle tuv is translated 3 units left and 4 units up and then reflected across the y-axis to form triangle t"u"v" .

triangle tuv is dilated by a scale factor of 9 and then translated 2 units right and 1 unit down to form triangle t"u"v" .

Naruto is choosing between two venues that will deliver food to his house. with probability 1/3 he will choose ramen mania (r), and with probability 2/3 he will choose sushi (s). if he chooses r, 15 minutes after making the call, the remaining time it takes the food to arrive is exponentially distributed with average 10 minutes. if he orders s, 10 minutes after making the call, the time it takes the food to arrive is exponentially distributed with an average of 12 minutes. given that he has already waited 25 minutes after calling, and the food has not arrived, what is the probability that he ordered from r? i am really stuck on how to set this up, so if you could be extra clear, that would be super ! in advance