Pat kept track of the number of hours that he spent at the park each week for several weeks. He spent 10, 4, 1, and 5 hours. What is the mean number of hours that Pat spent at the park each week? O A. 20 hours O B. 9 hours O C. 5 hours O D. 4 hours​

Adam plans to choose a video game from the section of the store where everything is 75% off. he writes the expression d-0.75d to find the sale price of the game if the original price is d dollars. gena correctly writes another expression, 0.25d, that will also find the sale price of the game if the original price is d dollars. use the drop down menus to explain each part of adams and rena's expression

Which of the following is true for the relation f(x)=2x^2+1

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?