i think the second one is A
Answer:
7.716 x 10^-3
Step-by-step explanation:
Using indicies,
0.3858 x 0.02
(3.858 x 10^-1) x (2.0 x 10^-2)
3.858 x 2.0 x (10^-1 + -2)
The answer is 4.
The easiest way to determine the value of statements like this is to turn the percentage into a decimal and then multiply.
20% * 20
.20 * 20
4
