The amount that two groups of students spent on snacks in one day is shown in the dot plots below.

group a

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0. 1. 2. 3. 4. 5

group b

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0. 1. 2. 3. 4. 5

which statements about the measures of center are true?

select three !

the mean for group a is less than the mean for group b.

the median for group a is less than the median for group b.

the mode for group a is less than the mode for group b.

the median for group a is 2.

the median for group b is 3.

asnwer is (g o h o f)(x) = 2x - 6/x + 7

step-by-step explanation:

given,

f(x) = x - 3/x

g(x) = x + 3

h(x) = 2x + 1

we need to find : (g o h o f)(x)

we can write (g o h o f)(x) = g[ h{ f(x) } ]

so first we find h{f(x)}

h{f(x)} = f(x) + 3 = (x - 3/x) + 3

h{f(x)} = x - 3/x + 3

now we find g[ h{ f(x) } ].

g[ h{ f(x) } ] = g(x - 3/x + 3)       {plug h{f(x)} = x - 3/x + 3 in g[h{f(x)}] }

g(x - 3/x + 3) = 2 (x - 3/x + 3) + 1

                    = 2x - 6/x + 6 + 1

                    = 2x - 6/x + 7

hence we get (g o h o f)(x) = 2x - 6/x + 7

a) is $10.34

b) is 6 toppings