How do you write 0.8301 in scientific notation

How to solve a simultaneous equation involved with fractions?

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way

Which is an accurate comparison of the two data sets? the commute to work is typically shorter and more consistent than the commute home. the commute to work is typically shorter but less consistent than the commute home. the commute to work is typically longer and less consistent than the commute home. the commute to work is typically longer but more consistent than the commute home.