a stone X of mass 2 kg is at the height of 2m from the ground level. Another similar stone Y of mass 4 kg is at the height of 4m from the ground level. what is the difference between their potential energy?

Arecipe uses 2 cups of sugar to make 32 brownies. how many cups of sugar are needed to make 72 brownies?

Agroup of randomly selected apple valley high school students were asked to pick their favorite gym class. the table below shows the results of the survey. there are 528 students at apple valley high school. gym class number of students racquet sports 1 team sports 9 track and field 17 bowling 13 based on the data, what is the most reasonable estimate for the number of students at apple valley high school whose favorite gym class is bowling? choose 1 answer a. 9 b. 13 c. 119 d. 172

There are 45 questions on your math exam. you answered 810 of them correctly. how many questions did you answer correctly?