Answer:
1 option or last option are the best choices sorry if I'm wrong.
Answer:
I'm pretty sure the answer is -a²b and 5a²b
Step-by-step explanation:
Answer: C.V=C1.V1 +C2.V2
Step-by-step explanation: C=(C1V1 + C2V2)/V -> C=(20%.V+25%V)/2V-> C=22,5%
Answer:
the answer is 3 because 1x3=3
