The total number of ships on both days 2x + 5
The total in all the 5 days is 7x +2
Sum of functions
From the given table;
- Total number of ships on Monday = x - 4
- Total number of ship on Tuesday = x + 9
The total number of ships on both days = x - 4 + x + 9
The total number of ships on both days 2x + 5
b) To get the total for all the days;
Total for all days = 2x + 5 + 2x + 3x - 7 + 4
Total for all days = 7x + 2
Hence the total in all the 5 days is 7x +2
learn more on addition of functions here: https://brainly.com/question/2475734
