A confidence interval for the population mean number of jobs a person has before the age of forty was found to be 8.2 to 10.9. Find the midpoint of this confidence interval.

What is the rule for reflection across the y axis

Tiara buys the pizza shown below: a circular pizza is shown. the edge of one slice is marked ab. what does the curve ab represent?

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?