What is 2^4 divided by (4/10 times 2)

Segment xy is dilated through point m with a scale factor of 2. which segment shows the correct result of the dilation

Need ! the total ticket sales for a high school basketball game were $2,260. the ticket price for students were $2.25 less than the adult ticket price. the number of adult tickets sold was 230, and the number of student tickets sold was 180. what was the price of an adult ticket?

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?