Answer:
It's an enlargement
Step-by-step explanation:
e.g. when your pupils become dilated they enlarge
16 units. Start from -2 and count up to 14. Basically -2+2+2+2+2+2+2+2+2+2 since the scale is by 2
15 students have roles and 25 do not I hope this is right or at least helps :)
