the mean age of a heard of cows is 7.9 years. a cow that is 0.5 years old is added to the herd. how does this cows age affect the mean

b) 36

step-by-step explanation:

18 times 2 is 36

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step-by-step explanation:

$25

step-by-step explanation:

25 - 4.50 = 20.5

20.5 / 2 = 10.25

10.25 + 10 = 20.25

20.25 - 12.50 = 7.75

therefore the answer is $25 as shown as the first number.

the function makes a strait line horizontally with no x intercept but a y intercept at 9.