Answer:
Step-by-step explanation:
1/2(-9+n)=20
n=40+9
n=49
The answer is a because it’s showing that he spends 3.75$ on each sheet of paper and x represents how many he can buy. It also shows that it can be less or equal to 20$
The answer would be 2 over 3, or 2/3. (:
7.5, 7.058, 8.508,
8.58
Step-by-step explanation: