Question

Please slove step by step for both

Answer 1

Answer:

Step-by-step explanation:

8. 21+7 = 28

9. 73-17 =56

Answer 2

Answer:

First Question:

BD = 28

Second Question:

BD = 56

Step-by-step explanation:

First Question:

BD = BC + CD

21 + 7 = 28

BD = 28

Second Question:

BD = CD - CB

73 - 17 = 56

BD = 56