A=2(L+W) (w)
can some one help me

2Lw+2Ww

Step-by-step explanation:

you multiply the ones outside which are

2 and w

to give '2w'

then,

2w(L+W)

you expand the bracket by multiplying each term in it by 2w thus:

2w*L +2w*W

=2wL+2wW

x-150=475   x=625

step-by-step explanation:

if the bike after the sale ($150) is $475 then just simply add 150 to 475.