I don't know about the first one but for the second one:

Answer:
3 to 1
Step-by-step explanation:
The answer will be multiple times wich the number needs to change
Answer:
he got 24 right
Step-by-step explanation:
30 time 80% is 24
Answer:
CBA=MNP
Step-by-step explanation:
Side NP=CB
Side NM=AB
then the angles between those sides are equal