Answer:
4.2 x 10-4, 5.2 x 10-2, and 5.2 x 10–1 are all greater than 3.2 x 10-3.
Explanation:
First we calculate the first equation, using the order of operations, or PEMDAS.
3.2 x 10-3 = 29
so we now have to check the other numbers
2.1 x 10-3 = 18
4.2 x 10-4 = 38
5.2 x 10-2 = 50
5.2 x 10–1 = 51
In the end it shows that all but 2.1 x 10-3 are greater than 3.2 x 10-3.