Answer:
...
Step-by-step explanation:
15) n - 13
16) 3n
17) 12x - 9
18) -k
19) -20n
20) -4n
21) 3 - 21m
22) 16n + 18
the answer is m=17
https://photomath.net/s/argDe9 shows how to get there
To get the answer, you need to think of it like a see-saw.
Both sides must equal the same relative to 33.5. For example, 32 is 1.5 away from 33.5 so you could say you have 1.5*4 (because theres 4 tubes with 32 sweets). If you were to do this for the whole table, it would look something like this:

This simplifies to:




This method can sometimes be inefficient depending on how many values but is probably the simplest way to solve this problem.
hope this helps :)
(sorry the other way is kinda hard to explain possibly ask your teacher tomorrow)
Answer: $27 for four large pizzas is cheaper than 32$ for five large pizzas
Step-by-step explanation:
YAY I KNOW HOW TO DO THIS OKAY
so 90 degrees minus 49 degrees equals 41 degrees
then 41= (x+3) then you subtract 3
so x=38