reflection transformation i believe. Correct me if im wrong im not that smart lol.
Percent means parts out of 100
85%=85/100=0.85
'of' means multiply
therefor
85% of x equals 17 means
0.85 times x=17
divide both sides by 0.85
x=20
the number is 20
128 cal/sec hope this helps
Answer:
<h2>

</h2>
Step-by-step explanation:

To find f(-9) , substitute the value of x that's -9 into f(x). That is for every x in f (x) replace it with - 9
We have
<h3>

</h3>
We have the final answer as
<h3>

</h3>
Hope this helps you