Write a verbal expression for each algebraic expression

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?

1. how do you convert the repeating, nonterminating decimal 0. to a fraction? explain the process as you solve the problem.

The product of sin 30 degrees and sin 60 degrees is same as the product of