Her dance class is 1 hour and 45 minutes long
Hope this helps!
Answer:
variable
Step-by-step explanation:
A variable is a American, Latin, Greek etc letter used to represent an unknown.
The second one is the right answer
here's the answer to your question
20; make both equations equal so whatever you plug in for x will be the same
2(4x+10)=8x+k
8x+20=8x+k
k=20
