If Anna can run 2km in 8 min, how long will it take her to run 5 km if she maintains her​

The depth of a lake at a certain point, wich is a function of the distance of that point from shore, is 30 feet.

Alicense plate is to consist of 44 digits followed by 55 uppercase letters. determine the number of different license plates possible if the first and second digits must be? odd, and repetition is not permitted.

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much