Answer:
The sum of 78 and -78 is zero.
Step-by-step explanation:
I used a calculator ;)
I think laura is 10 years old and her dad is 40
Answer:
I do not see all the graphs but it would be the reverse of what is shown for A. graph. The tickets sold to total income would have to be a 1:4 ratio where every 4 dollar leap in the y-axis is a one point (1 unit change in x).
Step-by-step explanation: