Answer: 
Step-by-step explanation:
We are given


They can be written as


Now , the dot product of and b is given by :-



[Since
]
Therefore , the value of the dot product 
A=p (1+rt)
A future value ?
p Principle 900
R interest rate 0.06
T time 9/12
A=900×(1+0.06×(9÷12))
A=940.5
Funny cause I just did something similar a few minutes ago
Is there like a picture or something?