Question

Look at the attached image please answer s fast as possible will give 35 points if answered correctly

Answer 1

Answer:

A)  D

Step-by-step explanation:

A)

(7 x 3) x (10 (5) x 10 (2)) - brackets are squared numbers to go on the top.

21 x 10 (5 / 2)

= 21 x 10 (7)

= 2.1 x 10 (8)

sorry I’m not sure how to do B