Answer:
8x^2 - 4x
Step-by-step explanation:
add like terms
Answer:70%
Step-by-step explanation: no. of cards last year=60
no. of cards presently=200
increase in no. of cards=200-60
=140
%change=140/200 x 100
I think this attachment will help you
B
my answer has to be at least 20 letters.....
