What is the slope of the equation y = 12x - 19?

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?

8.74 rounded to the nearest whole number

|p| > 3 {-3, 3} {p|-3 < p < 3} {p|p < -3 or p > 3}