Answer:
-21.5 + 0
-22.5 - 1
Step-by-step explanation:
lol
No, this rel. is not proportional because of the addition involved ("plus 1 lb for each guest").
A proportional rel. features mult. only.
The quickest way for converting small numbers like this to binary would probably be to find the closest power of 2, then add/subtract intermediate powers of 2 as needed.
Converting 8 is immediate, since it's already a power of 2:

Converting 15 and 17 is also pretty easy if you're familiar with the rules of arithmetic in binary.

Answer:
16
Step-by-step explanation: