Question

for each calculation choose the correct answer written in standard form​

Answer 1

Answer:

B and B

Step-by-step explanation:

I solved in the picture

Hope this helps ^-^

Answer 2

Answer:

a) C. 2.1 × $10^{8}$

b) B. 5 × 10²

Step-by-step explanation:

a)

(7 × $10^{5}$) × (3 × 10²) =

C. 2.1 × $10^{8}$

b)

(2 × $10^{5}$) ÷ (4 × 10²) =

B. 5 × 10²