Richard and Teo have a combined age of 33. Richard is 9 years older than twice Teo's age. How old are Richard and Teo

The diagonals of a rhombus are 12 inch and 16 inch long, the length of a side of a rhombus is 10 inch, what is the height of the rhombus

Asimple random sample of size nequals14 is drawn from a population that is normally distributed. the sample mean is found to be x overbar equals 70 and the sample standard deviation is found to be sequals13. construct a 90% confidence interval about the population mean

Suppose the radius of a circle is 16. what issuppose the radius of a circle is 16. what is its circumference its circumference