answer:
a. 8 · 10^7 is 4000 times larger than 2 · 10^4
Explanation:
- solve the actual expression first
- write the expressions in standard form and compare them
8 · 10^7 (or 8 X 10000000) = 80000000
2 · 10^4 (or 4 X 10000) = 20000
- now that you have them in standard form, divide them to compare
80000000 / 20000 = 4000
- from this, we can tell that 8 · 10^7 is 4000 times larger than 2 · 10^4