Answer:
$2.70
Step-by-step explanation:
To add 45 percent to the original price you do 100%+45%=145%=1.45
times 1.45 by the original price.
Then take away the original price from the answer you just got.
$1.45×$6=$8.70
$8.70-$6=$2.70
I don't know.
you should do it your self not with the internet
Answer:

Step-by-step explanation:
x= 1 over 4y-2