9514 1404 393
Answer:
see attached
Step-by-step explanation:
The sum is formed by adding corresponding elements. For example, the lower right element (row 3, col 3) of the sum is 5+4 = 9
the have identical length so to know the length of each pipe you should divide 22.4 by 7
22.4 / 7 = 3.2
Answer:
you multiply
Step-by-step explanation: itss easy just multiply it