Someone plz answer my questions. yall are really slacking today. my last two questions need real answers :)

Draw the line of reflection that reflects △abc onto triangle δ a'b'c'

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?