Answer:
See below.
Step-by-step explanation:
20.
[tex] \sqrt{43} - \pi = 6.5574 - 3.1416 = 3.4158 [/tex]
Plot the number between 3.4 and 3.5, but much closer to 3.4 than to 3.5 since it is approximately 3.42.
21.
(7.3 * 10^6) / (3.2 * 10^4) = 7.3/3.2 * 10^6/10^4 = 2.3 * 10^2
