Atree is 9 centimeters taller each year than it was the year before. if you write down the height each year, what kind of sequence will you have?
arithmetic, geometric or both or none

Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1

The number of chocolate chips in a bag of chocolate chip cookies is approximately normally distributed with a mean of 12611261 chips and a standard deviation of 118118 chips. (a) determine the 2626th percentile for the number of chocolate chips in a bag. (b) determine the number of chocolate chips in a bag that make up the middle 9696% of bags. (c) what is the interquartile range of the number of chocolate chips in a bag of chocolate chip cookies?