6+8+b is assuming because it’s asking for the total weight
You would do 306+407, which is 713. Then you would do 713+237, which is 950. <u>(950 is your answer)</u>.
The answer would be −
16
−
28
i
4 divied by 692 is 0.00578 or if your asking 692 divided by 4 is 173