The final expression is 
Step-by-step explanation:
The expression that we have is

In order to solve the expression, we start by applying the distributive property to the bracket. We get:

Simplifying,

Now we add the two terms in x, and we find:

Which is the final expression.
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Answer:
$1.25
Step-by-step explanation:
Number Two or B would be correct
3x(5x+6)-8(1+8x)
15x^2+18x-8-64x
15x^2-46x-8 is your final answer
Solution
Step 1
Write the numbers:

Step 2
Arrange the numbers in ascending order of magnitude.