Answer:
x > 6
Step-by-step explanation:

Mark: 52 meatball sandwiches
Julie: 64 meatball sandwiches
Parentheses are used to identify which numbers you should add,multiply .ect first. So If i had
12-(3+1)=x
then you would want to solve 3+1 before you subtract 12.
Answer:
1:4 and 6:24
Step-by-step explanation: