Question

please answer the questions​

Answer 1

Answer:

1.43 X 10^3/ 5.1 X 10^7

1.43/5.1 X 10^-4

1.43 X 10/51 X 10^-4

1.43/51 X 10^-3

143 X 10^-2/51 X 10^-3

143/51 X 10^ -1

2.80 X 10^-1