3 divided by 10 is 0.3
2 divided by 5 is 0.4.
They are not equivalent.
13)
there are 2π radians in 1 revolution, and there are 60 seconds in 1 minute, so keeping that in mind, then,

14)


15)
what is the radians per seconds "w" in revolutions per minute? just another conversion like in 13)
Find the surface area of one side and multiply it by 6
So if Ann is a, then Tim has 11a brushes, and together they have a+11a=12a brushes.
if 12a=60, then a=60/12=5
o Ann has 5 brushes!