Simplify √81����6 − �64����9
highest common factor of 54 and 30
1 9/10 x 2
VALUE OF PI IN 2 DECIMAL PLACES
d^2/dx^2(u/x)
what is 36.375 as a fraction
6(a+2)+2(a-1)
Problem: China loses 3,600 km2 of farmland annually due to desertification.
If China has 1,200,000 km2 of farmland today, how muc...
[x246810 hijklmn]\begin{bmatrix} x & 2 & 4 & 6 & 8 & 10\\\ h & i & j & k & l & m & n \end{bmatrix}[x h2i4j6k8l10mn]
2(x+7)+3(x+1)
