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its difficult for me

H. 5.89 × 10⁻⁷

Step-by-step explanation:

F and I are not correct since F creates a negative number and I creates a large number.

You have to see how many digits you have to move the decimal point to get from the current number to 5.89 (in scientific notation, there is exactly one digit before the decimal point, regardless of rounding), which you've done, and should've gotten 7 points. So your answer would be H. 5.89 × 10⁻⁷.

about 0.75 hours

step-by-step explanation: