You- y=50+20x
friend y=30+20x
If you subtract, the difference is only 20 dollars at any given months since the rates are the same
$1.40+$1.60=$3
$180-$3=$177
Her mother added $177 to her piggy bank
Answer:
No, they are not. While they are similar terms, they do not have the same values within the terms. Like how 3 is not -2.