A set of average city temperatures in May are normally distributed with a mean of 20.66°C and a standard
deviation of 2°C. The average temperature of Singapore is 26°C.
What proportion of average city temperatures are lower than that of Singapore?
You may round your answer to four decimal places.

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

The scatterplot below shows the number of hours that students read weekly and the number of hours that they spend on chores weekly. which statement about the scatterplot is true?

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)