Answer:
hi how are you doing?
Step-by-step explanation:
Answer:
30%
Step-by-step explanation:
5+2=7+3=10
3/10=30%
2 nickels
5 dimes
3 quarters
Your answer is Planet B, Planet D, Planet A, Planet C.
Look at the exponents.
23 comes before 24 and 27. So 3.30 x 10 ^ 23 comes first. Next, 24, and there are 2, so go by the decimals, 4.87 comes before 5.97. So 4.87 x 10^24 comes before 5.97 x 10^24. Then, that leaves 1.89 x 10^27.
When you estimate you either round up or down to get an even number. It's easier to mentally multiply numbers ending in 0.
