How much carbon dioxide will you prevent from entering the atmosphere in one year, if you replace a 100-watt light bulb with an LED bulb that uses 13 watts in a fixture that you have on 8 hours per day? Round to nearest pound.

Saves pounds of CO2
Round to nearest pound.

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

Suzanne began a trip with 18 1/2 gallons of gas in the gas tank of her car if she hughes 17 3/4 gallons on the trip how many gallons does she have left once she finish the trip

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?