So simple.
18.
If you need help to find why, here's a link
http://www.geteasysolution.com/what-is-30-percent-of-60
Answer: 
Step-by-step explanation:
To reflect the graph of a function across the x-axis,

Answer:
1/8 i think
Step-by-step explanation:
I cannot send an attachment but the function forms a parabola. have you tried using a graphic calculator?
Quadratic formula where:



do both do get the roots of the equation