Identify the following in the expression below:
9x2 - 27x

Find the length of the normal and the angle it makes with the positive x-axis. (see pictured below)

Over the last 4 seconds, a snail has traveled 4/9 of an inch. if the snail traveled the same distance each second, how far did it travel each second?

Grandpa ernie is shrinking! over the past 4 years his height decreased by a total of 2.4 cm.it decreased by the same amount each year. what was the change in grandpa ernie's height each year