How do you round 6.4 to the nearest whole number

Math each whole number with a rational,exponential expression

What is the volume of the cone to the nearest cubic millimeter? (use π  = 3.14) a) 46 mm3 b) 128 mm3 c) 183 mm3 d) 275 mm3 diameter = 5 mm height = 7 mm how do you do this problem step by step?

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge