25-18=7=37-30
512.30 - 15%=
5y x 6
what is the last prime number
0.75 is to 3⁄4 as 0.8 is to ______
does the set of all non-empty sets contain itself?
Integrate[Sqrt[4-9Power[x,2]],{x,0,Divide[2,3]}]
(x^(3)-1)/(x^(2)+y+z)+(y^(3)-1)/(y^(2)+x+z)+(z^(3)-1)/(z^(2)+y+x)
If x - 3 = y, then (y - x )3 = _____ ?
does every finite partially ordered set that is not totally ordered contain two elements x and y such that:
the probability that ...