A b and c or centers of three circles. select all the segments that are congruent to ab. HF
HA
CE
CD
BD
BF​

Choose the correct classification of 3x4 − 9x3 − 3x2 + 6. 5th degree polynomial 4th degree polynomial 9th degree polynomial 24th degree polynomial

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.