Answer:
B.
Step-by-step explanation:
It says that when her brother gives her an encouraging look, it boosts her confidence. So, I would assume it'd be that one.
Step-by-step explanation:
7(x - 3) - (x + 3)(x - 3)
(x - 3)(7 - (x + 3))
(x - 3)(7 - x - 3)
(x - 3)(4 - x)
Answer:

Step-by-step explanation:

We know that 3^4 = 81. So :



Here both the Right hand side & Left hand side has same base i.e. have 3 as base in both the sides.
So , eliminating the base gives :-

All you need to do is use your calculator to solve that equation. Just so you don't need to for just this one, here's the answer you should type into the box:
3/20
The expression that is equivalent to the given expression is -4x^-5
<h3>How to determine which expression is equivalent to the given expression?</h3>
The expression is given as:

Rewrite properly as
-4x^-5x^0
Express as products
-4x^-5 * x^0
The value of x^0 is 1
So, we have:
-4x^-5 * 1
Evaluate the product
-4x^-5
Hence, the expression that is equivalent to the given expression is -4x^-5
Read more about equivalent expressions at:
brainly.com/question/2972832
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