Discover Questions

Myron has 179 postcard he says he has about 200 cards did he around the numbers of cars to the nearest ten or nearest hundred? We used to measure temperature in degrees centigrade. Now we call it celcius, why the change? Explain how multiplication can help you find 7 plus 7 plus 7? How much solid waste does the human body release? I have to reduce the algebra-8x+3=2x+97 please help me
What is the X?