4. there are four teams in the afc east division of the national football league: bills, jets, dolphins, and patriots. how many different ways can two of the teams finish first and second?

12

Step-by-step explanation:

Two teams to come first or second = 2!

Number of team for the season = 4

Number of ways it can finish first or second

=(4C2) * 2

= [4!/2!(4-2)!] * 2

= 12 ways

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

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