10/100=x/20
2x²+x+2=0
(18×20)/100
solve the simultaneous equations x+y=5 and y=x+1 using graphs
724×443
Expand
2(3x+7)
x6x^{6}x6 -3x4x^{4}x4 +3 x2x^{2}x2 -1
prime and squared number of 17
simplify
13x+2y-10x-7y
i am thinking of a number 20% of my number is 20%
10% of my number is ?