For how many hours did each young man practice the piano?

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.