Answer:
Not Congruent.
Step-by-step explanation:
If they were congruent, they wouldn't be mirror images of each other. :)
2520
LCM(4, 7, 8, 9, 10, 12) = 2520
p+2=-15 step1:-2 on both sides
p=-17
100
11.5 sec
Step-by-step explanation:5.5+6=11.5