Answer:
A) - 2a+3b
B) 1.2a+1.2b
OP = OA + AP
AP:PB = 2:3
So, AP is 2/5 of AB
2/5 is the same as 0.4
OA+AP
2a + 0.4AP
2a + 0.4(-2a+3b)
2a + - 0.8a + 1.2b
1.2a + 1.2b
For B:
I don't know how to find the multiple of a+b to OP, for the last mark, but I hope this helps!
