The solution
is mathematically given as

- P(X=3)= 0.17
<h3>What is the
solution 
?</h3>
Generally, the equation for the Probability of P(X=3) is mathematically given as
b)

Therefore

P(X=3)= 0.17
c)


a)

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Answer:
see below
Step-by-step explanation:
I do not know what the 'given expression' is, bu the three UN-highlighted expressions in each question 1 and 2 are equivalent
Only the highlighted one is not equiv to the other three
5k-4k=-1+-1
k=-2, its all aboit rearranging the order of numders based on there like terms. If you need any more help ask.
It’s A. $25.20
You find the rate you dividing the cost ($18) by how many gallons (5). Then you multiply by what you are looking for (7 gallons). You get 25.20.