<h3>
Answer: Choice B. f(x) = 100 - 68x</h3>
Work Shown:
Solve for y. Then replace y with f(x).

Effectively this involves adding 1000 to both sides and subtracting 680x from both sides, afterward we divide both sides by 10 to isolate y.
Answer:
<h2>
<em>y</em><em>=</em><em>-</em><em>4</em></h2>
<em>Sol</em><em>ution</em><em>,</em>
<em>X=</em><em>4</em>
<em>Now</em><em>,</em>
<em>
</em>
<em>Hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em>
<em>Good</em><em> </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em>
Answer:
9x8=72
Step-by-step explanation:
Your welcome
A = 1/2 x bh
A = 1/2 x 5 x 12
A = 6 x 5
A = 30m
First page , second image is the correct answer :)