Pre algebra help please. Show me how to work out.?

dingdong

New member
1 Complete 3.4 ft = ________cm. Round to the nearest tenth.

2. Find the volume of a sphere 15.2cm radius, using 3.14

3. Find the length of a diameter of a circle 8 2/3mi.
 
1) 1ft=30.48cm

Therefore, 3.4 ft =103.6cm

2) (4/3) * pi * radius^3=volume
4/3*3.14*15.2^3=volume
1.33333333*3.14*3 511.808=volume
=14 700.43cm^3

3) I'm not sure what you're asking here.
 
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