Find the unite rate

there are 12 boxes with 108 items
how many items per box?
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Why do interests rates on loans to be lower in a weak economy than in a strong one

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15