Kelly is playing a computer game to her learn about science. her scores for the first six games were 10, 12, 10, 8, 14, and 15.

how many points does she need to earn on the next game so that her average score for all games is 12 points?

3

11.5

15

84

What is the value of r of the geometric series?

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

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