A, $1.42. i found this answer plugging in 1.42 and seeing if it would work or not
Its 10 times farther because each time you add another exponent, you're multiplying by 10, and so the difference is 1 in this case. Therefore it is C--10
0.349 as a fraction is 349/1000
800 = 8 x 10^2 <== ur answer
