Consider the problem of reasoning about the identity of a set from the size of its intersections with other sets. You are given a finite set U of size n, and a collection A1, . . . , Am of subsets of U. You are also given numbers c1, . . . , cm. The question is: 1. Does there exist a set X ⊂ U so that for each i = 1, 2, . . . , m, the cardinality of X ∩ Ai is equal to ci?

We will call this an instance of the Intersection Inference Problem, with input U, {Ai}, and {ci}.

2. Prove that Intersection Inference is NP-complete.

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 !

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this is the answer for you hope it

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

c. side angle side. u shares the same sides