Red chapter 9 question 1 test answers​

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

Can someone check if i did this correct. it’s number 4 if you’re wondering.

During the election for class president, 40% of the students voted for kellen, and 60% of the students voted for robbie. 500 students voted in total. how many more students voted for robbie than for kellen? answer with work : )