Hello, I think that these assignments refer to the amount of significant figures in each of these setups
For the first one you have displayed here we must look at the lowest amount of sigfigs to use in our answer, that would be 3
So we find the answer as is and simplify it down to 3 significant figures, so the answer would be 91.1
For the second answer it would be 807, because there is also 3 sigfigs
Have a great day gamer!