Answer:
the difference is 143
explanation
How to Find the Difference between Two Numbers. To find the difference between two numbers, subtract the number with the smallest value from the number with the largest value. The product of this sum is the difference between the two numbers. Therefore the difference between 45 and 100 is 55.
so 120-(-23) is 141
The measure of BC is 19 as well
The answer is C.
hope this helps
Step-by-step explanation:
I believe this would be A or D
