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2. What answer represents this number in scientific notation?
0.00000916

a. 916 x 10^-8
b. 9.16 x 10^-6
c. 916 x 10^8
d. 9.16 x 10^6

3. What is this number in standard form?
6.8 x 10^-4

a. 5,750,000,000
b. 575,000,000,000
c. 0.00000000575
d. 0.575000000000

5. What is this number in standard form?
5.2 x 10^8

a. 0.000000052
b. 0.0000000052
c. 520,000,000
d. 5,200,000,000

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