(20+1)/(10^((2-6/2) )+1)
24 ÷ (−4) + (−2) ⋅ (−5)
(36/6)/4-(12*3/2*9)/2^2
$\sqrt{\Box}$ √3 -7
6x + 2y ≤ 10
n 180
52 = 120
solve for x=3x-1, if x=2x+1?
x^2-9
1/2+2/3+3/4=
how much 500+542