Shown below are parallel lines n and p which are cut by transversals r and s which are perpendicular to each other. Which of the following is the measure of 21?
(1) 51
(2) 64
(3) 72
(4) 102

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true

step-by-step explanation:

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.

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