Answer:
x = 15 units
Step-by-step explanation:
Here, base of triangle = x units & height = 19 units

Answer:
a. a(b)c
b. a(a(b)c)c
d. a(a(a(a)c)c)c
Step-by-step explanation:
We are given the following in the question:
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a. a(b)c
It is given b belongs to W.
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b. a(a(b)c)c
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c. a(abc)c
a(abc)c does not belong to W because we cannot find x in W such that a(abc)c belongs to W.
d. a(a(a(a)c)c)c
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e. a(aacc)c
a(aacc)c does not belong to W because we cannot find x in W such that a(aacc)c belongs to W.
Sarah because if you add up the one time registration fee and the amount per month for one month it would be less than Joe's
So we have a 6 at the bottom, and the root is 3, so hmm how to take it out, simple enough, just let's get something to make the 6 a 6³, so it comes out of the root
so