Answer:
C
Step-by-step explanation:
For A, only two sides are congruent, while the third is not
For B, You have two sides and an angle, which is SAS, not SSS
9x895
= 9 (800 + 95)
=7200 + 855
= 8055
49x +196x.... or 245x
80 students
12/80 is 0.15 or 15%