Quite a broad question. 10/2 you divide by 2 which equals 5. Is that your question?
Answer:
Y=0.35x+18.99
Step-by-step explanation:
Y = total cost
X = number of letters
A positive times a negative will always be negative
9 x -1 = -9
-9, Hope this helps!
3 nights obvs idk how you couldn't get the answer
