Question

Help with this two pls

Answer 1

20. Seens to 1. 21. A. 21. B

Answer 2

I'm not sure about 20 but here's 21.

Part A is 274.622.

Part B is 282.018

Explanation:

Part A show work:

278.320

- 3.698

________

274.622

Part B show work:

278.320

+ 3.698

________

282.018