Answer:50
Step-by-step explanation:(x+10)+(2x+20)=180
Answer:
Richard will pay $30.
Step-by-step explanation:
Because "x" is equivalent to the amount of video games he rents, you would replace "x" with 5. Do the math, and you would get 10+20=30! Hope this helps!
Answer:
1. 
3.
(undefined slope)
5. 
7. 
Step-by-step explanation:
slope (m)
rate of change (r)
1. m =
3. m =
(undefined slope)
5. m = 
7. r = 
Hope this helps!