Answer:
10x+15
Step-by-step explanation:
5 x 2x=10x
5x3=15
Sorry about the drawing but the line starts at the origin of the graph and since it is -x which means it has a negative slope. So the line would start at the origin going down by the slope of -1. hope this makes sense
Answer: 
Step-by-step explanation:

<span><span><span>22x</span>−11 over x to the second power - x - 30.</span></span>