Bad at math23

For some of these I think I have the right answer but I need a second opinion, Thanks :) (1). 223.7 km=_m. A} 223,700 ***(I multiplied by 100) B} 22,370 C} 22.370 D} 0.2237 (2).Write the metric unit that makes the statement true. 3.219m=3,219___ ^cm****(N...

The achievements of the Shang dynasty include development of pictographs and the______. Establishment of the silk road*** ending of legalism introduction of metal coins development of bronze metalworking please help thanks

(8). 12 1/9+ 10 2/3 ^22 1/6**** ^22 7/9 ^22 1/9 ^22 1/4 (9). -1/5+(-3/7) ^-22/35 ^-1/3 ^12/35 ^4/7 (10). 4/9-1/3 ^1/27 ^1/9 ^1 ^5/27**** (11). -3 5/9-1 3/9 ^-4 2/9 ^-4 8/9 ^2 1/9 ^2 2/9 (12). 5 2/3-4 5/9 ^1 1/9**** ^8/9 ^1 1/2 ^3/4

The first one is B. 3:2 The second one is D.240 so you are right And the third one is 35 so you are correct there too hope this helps

ok thanks ms.sue, what about the second set?

Okay thanks for the help :)

i chose the introduction of metal coins my bad lol

Thank you so much Ms.Sue! :)