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. -

step-by-step explanation:

659

- (2, -7)

- lines r and s and lines t and u must be parallel

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis:

step-by-step explanation:

is their an equation anywhere i can take a   look at it and see if i am right.