Answer
1
Work Step by Step
=$\frac{0.2^{3}\times 0.2^{4}}{0.2^{7}}$
=$\frac{0.2^{7}}{0.2^{7}}$
=1
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.