A solid metal cube of side 20cm is melted down and made into 40 solid spheres, each of radius r cm Find the value of r

[The volume of a sphere with radius is V=4/3 pie r^3

Crickets can jump with a vertical velocity of up to 14 ft/s. which equation models the height of such a jump, in feet, after t seconds? h(t) = –16t2 + v0t + h0 h(t) = –16t2 + v0t + 14 h(t) = –16t2 + 14t h(t) = –16t2 + 14t + 14 what is the maximum height the cricket reaches? round to the nearest thousandth. h = feet