I accidentally pressed the challenge button while I was scrolling through. I didn't mean to press that challenge, instead of the next one. Is there any way to cancel a challenge?

Can u pls answer my questions I’m so stuck and I need them by tmrw or today pls I don’t know how to get ahold of u

Explanation:

(because i need 20 chars)

the answer to your question would be something called hertz. the unit of measurement called a hertz, which is one cycle per second, is used to measure clock speed. within one cycle, your computer processes, refreshes, or updates itself to the changes that it is going through. in the case of computer clock speed, one hertz equals one tick per second. the clock speed of computers is usually measured in megahertz (mhz) or gigahertz (ghz)