AP BIOLOGY

Detailed explanation-1: -The number of outfits the person has. Solution, The person has a total number of 80 outfits.

Detailed explanation-2: -3 (jeans) x 5 (shirts) x (2 shoe pairs) = 30 possible outfits.

Detailed explanation-3: -An “outfit” consists of one top plus one bottom. Since every top can be worn with every bottom, the tops multiplied by the bottom gives us the number of outfit options. Dresses are generally not worn with tops or bottoms and therefore they are added after the multiplication has taken place.

Detailed explanation-4: -He can wear each with two different pants, so 4 x 2 giving 8 different shirt/pant combinations. Now each combination can be worn with two different pairs of shoes, so 8 x 2 giving 16 total combinations of shirt, pants and shoes.

Detailed explanation-5: -Correct answer: In this case, there are 5 * 7, or 35 unique combinations of pants & shirts Mark can wear.