It takes johnny 42 minutes to get to the zoo after 18 minutes he stopped to get gas for his car what writing equation to express how many more minutes he had to travel after getting gas

Extra points! find the missing dimension! need asap

The data set represents the ages of players in a chess club. 27, 34, 38, 16, 22, 45, 54, 60. what is the mean absolute deviation of the data set?

Amanufacturer knows that their items have a normally distributed lifespan, with a mean if 9.1 years, and standard deviation of 2.9 years. if you randomly purchase one item, what is the probability it will last longer than 10 years?