Posted by Esther on .
10. From the 2010 census data, the population of Texas was about 2.5 x 107 people. Florida’s population was about 1.9 x 107. Idaho’s population was about 1.6 x 106. Which of the following statements is true?
a)Idaho has a larger population than Florida.
b)Florida has a larger population than Texas.
c)Idaho has the smallest population.
d)Florida has the largest population.
11. What is 8.57 x 10–4 in standard form?
a)85,700
b)0.00857
c)8,570,000
d)0.000857
Please help!! Need answer now!!

Please answer two math questions!!! 
Reiny,
your numbers were probably written as
2.5 x 10^7
which means 2.5 x 10000000 , notice 7 zeros from 10^7
= 25 000 000 > 25 million
do the same with the other numbers and you will be able to compare their sizes.
8.57 x 10^4
= 8.57 x 1/10^4
= 8.57 x 1/1000 > count the zeros in the denominator
= .000857 > how many places to the left has the decimal moved?
does that give you any hints for quick solutions to these kind of problems? 
Please answer two math questions!!! 
Esther,
Thank you :)