Answer:
Metronome
Step-by-step explanation:
Metronome gives a steady beat to people that cant count beats in a measure
Answer:
If your asking us to just combine like terms it would be -3b^2-2b^2+1.4b+4c+c
but if your asking us to answer the question it would be -5b^2+1.4b+5c
Hope I helped :)