Tim has 9 marbles. ryan has 3 fewer marbles than tim. leslie has 5 more marbles than ryan. how many marbles does leslie have?

is it add, sub, or multiply?
need answer asap

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?

Is (root2 -2)^2 rational or irrational. show the steps and answer fast

This assignment is past the original due date o this data is from a sample. calculate the mean, standard deviation, and variance 16.7 11.1 46.7 14.8 13.3 16.6 18.5 47.3 42,8 show the following answers to 2 decimal places. sample mean- sample standard deviation ( use the standard deviation above for your calculation.) sample variance ooops- now you discover that the data was actually from a population! so now you must give the population standard deviation.