whats sets of number does the number 9/10 have?

Which set or sets of number does 8 over 3 or a fraction belong to?

Whats a whole number and whats 240,000 multiplied by the power of ten?

Two sets of the same number and eight are added to five times the same number

The sets of number which -5 belongs

whats the next number 486,162,54,18,6

whats the next number 2,4,8,10,20

whats the next number 1/128,1/32,1/8,1/2,2

whats the next number 3,6,11,22,27,54

whats the next number 10,40,120,240,240

What number sets does -9 fit into?

Asked by Sam