Determine whether the following expressions are equivalent to 8^4x 8^6 x 8^-7?then drag and drop each expression into the correct box.

What is 140% of 25? because i need

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with

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?