SOMEBODY HELP MEEE I WOULD PUT YHU AS BRILLIANTEST XJDJJFJRJRNRJTJ

Add-

0.859+1.63=2.489

Subtract- (Not sure where the decimal was)

0.859-0.03=0.829

0.859-00.3=559

Multiply-

0.859*10^1=8.59

0.859*10^2=85.9

0.859*10^3=859

0.859*10^4=8590

Divide-

0.859/10^1=0.0859

0.859/10^2=0.00859

0.859/10^3=0.000859

0.859/10^4=0.0000859

Round-

0.9

0.86

1

Compare-

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Hope this helps. Have a nice day. May it be filled with joy and happiness. Please, stay safe and wash your hands. Happy Holidays.

30

step-by-step explanation:

times by times

v = 1/3 a^2h

step-by-step explanation:

if the height is 57.7cm and the height of the slant edge is 18.2cm, then the volume is 1/3 a^2h.