428 round to the nearest ten is 430.
400
(.7 * 1) g / 428 g = 0.0016355140 (Unitless)
It is then 19.1 to the nearest tenths
500
It is: 400
It is 17.9 to the nearest tenths
8.96 to the nearest tenths is 9.0
428 rounded to the nearest hundred is 400. 428 rounded to the nearest ten is 430
2.45 to the nearest tenths is 2.5
7.66 to the nearest tenths is 7.7
67.07 to the nearest tenths is 67.1