The number of significant figures in 0.01500 is

How do you write y-10=2 (x-8) in standard form

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?

There are 93 calories in a small candy bar how many calories are ther in a half dozen small candy bars?