Answer:
50% increase
Step-by-step explanation:
half of 20$ is 10 and then ten more is a 50% increase sorry for bad explanation but its the right answer (https://www.percentagecal.com/answer/%20%206-is-what-percent-of-25#:~:text=Percentage%20Calculator%3A%206%20is%20what,%3D%2024)
heres a percentage calculator for you
