The answer to this question is A as it is the only one with the correct slope
X - the percent of increase
![210+210x=260 \\ 210x=260-210 \\ 210x=50 \\ x=\frac{50}{210} \\ x \approx 0.238 \\ x \approx 23.8\%](https://tex.z-dn.net/?f=210%2B210x%3D260%20%5C%5C%0A210x%3D260-210%20%5C%5C%0A210x%3D50%20%5C%5C%0Ax%3D%5Cfrac%7B50%7D%7B210%7D%20%5C%5C%0Ax%20%5Capprox%200.238%20%5C%5C%0Ax%20%5Capprox%2023.8%5C%25)
The percent of increase is approximately 23.8%.
Answer:
11:30
Step-by-step explanation:
You have to find the LCM (lowest common multiple) and it is:
60
60 minutes is equal to 1 hour, so they'll bark together at 11:30
Its 2x +20
hope this helped you