During summer vacation, Jaylen read, on average, 5 pages per night. Once he returned to school, he averaged 2 pages per night. What is the percent of decrease in Jaylen's reading?

Kyle and elijah are planning a road trip to california. their car travels 3/4 of a mile per min if they did not stop driving, how many miles could kyle and elijah drive in a whole day? ? 1 day = 24 hours. plzzz i will give you 100 points

2.5 milligrams is equivalent to how many grams

Aball is dropped from a height of 10m above the ground. it bounce to 90% of its previous height on each bounce. what is the approximate height that the ball bounce to the fourth bounce?