if 20% of the class is failing math what percentage is passing math?


if 10% is passing math what percent is failing math?

given the expression x-(-y) can also be written as
a) -y-x
b)-y+x
c)-xy
d)x+y

if you expand the bracket 3x(2-4x) the result will be
a)6x-12x
b)6x-7x
c)5x+12x
d)5x-x

a. -