Use substitution to combine equations. rewrite so that one side is equal to 0.

Using substitution, I merged the two equations setting them equal to each other:

Then, in order to make one side zero, all you have to do is subtract 3 from each side.

Your answer would be:

to find the unit price, we must figure out the cost of one item (in this case one dish towel).   to do this, we divide the total price ($7.92) by the number of items bought (for this problem it is 8, because there are eight dish towels in one pack).  

$7.92/8 = $0.99

therefore, the unit price, or the price of one dish towel, is $0.99.

hope this !

the correct option is b

step-by-step explanation: