factor: r^3+125
if x + y = 1 over i then x +2y equals what
-5/4w+16 + 3= 6/w+4
factorize 4c²-9d²
√85×85+170×15+226-1
8a/12
20.4207921 to 2sf
567 x 345
0.4777... in a fraction
5. Find the least sum of money that can be made up of an exact number of
