Answer:
12 in
Step-by-step explanation:
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I’m not sure about the rest but the slope is 4 and the y intercept is 3.
Hi, check my ans, tell me if anything is wrong. Ok?
By the binomial theorem,

where

Then the coefficients of the
terms in the expansion are, in order from
to
,





X = jane, y = jasmine, z = jocelyn
x + y + z = 56
x = 3z
y = 2z + 2
3z + 2z + 2 + z = 56
6z + 2 = 56
6z = 56 - 2
6z = 54
z = 54/6
z = 9 <==== jocelyn
x = 3z
x = 3(9)
x = 27 <=== jane
y = 2z + 2
y = 2(9) + 2
y = 18 + 2
y = 20 <=== jasmine