Answer:
10,710,349,050
Step-by-step explanation:
Answer:
The tree is 12 yards tall
Step-by-step explanation:
Try this solution:
1. if 1st number is 'x', the 2d number is 'y', then it is possible to make up the system of two equation according to the condition:

2. one number is 11, another number is 10.
You don't need to regroup when adding a two-digit number with a number.