in one morning if the shadow of a building of 20 meters long is 15 meters long how long is the shadow of atree of 10 meters long ?
3x-2y=7
x+3y=-5
solve by substitution
-5(6n-3)+8(n-8)=5+n-8
The simplest form of 336 divided by 198
(5/384)*(24*(600)^3)/(2100000*37300)
9^x-4\times 3^x+3=0
11111111111111111111111111111111111111111111111111111111111111111111111111111+7676767676767676767676767676767676767676767676767676...
67697+7686
-sin^2(x)-cos^2(x)
find the additiveinverse of -1-1001-1-1001and 0
