Choose the equations that will correctly solve this system. the sum of two numbers is 6. the difference of these same numbers is -10.

[x+y=-10,x-y=6]

[x+y=6,x-y=-10]

[x-y=-10,x+y=-6]

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 !