Who can help me out with this please

Answer:
see rexplanation
Step-by-step explanation:
A
There are a total of 14 marbles of which 8 are red and 6 are blue
ratio of all : blue = 14 : 6 = 7 : 3 ← in simplest form
B
ratio of blue : red = 6 : 8 = 3 : 4 ← in simplest form