How many different integers can have the same absolute value

Hi my sisters and brothers can tell me the answer because i don’t understand the question

Frank has a devised a formula for his catering business that calculates the number of meatballs he needs to prepare. the formula is m=4a+2c, where c=number of children; m=number of meatballs; a=number of adults. how many meatballs are required for a party of 10 adults and 5 children?

The average length of a king cobra is 3.7 m. the record length is 1.88 m longer than the average. how long is the record holder?