Answer:
Mary potted 26 of the plants.
Step-by-step explanation:
74 - 48 = 26
The missing length is 51.5, I hope this helps :)
The answer to this question will be C
2. Segment addition postulate
3. Substitution property of equality (AC=111; AB=7x+1; and BC=4x)
7. Symmetric Property of Equality
If you add or subtract by a number you must add the equality sign