The following list gives the number of siblings for each of 12 students. 2, 2, 3, 3, 2, 2, 4, 4, 3, 3, 1, 1
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Find the modes of this data set.

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so:

the answer should be:

a. 3, 4, and 6

b. 18, 24, and 36

c. 4.8, 6.4, and 9.6

hope i

-lavira : )

yes i do see that. i say this because i am doing my very best in high school so i can get a scholarship and credits.  

the answer is b.

surface area: 169π

volume: 366π

i got it down.