While mining, Fred found a large metal bar that contained 12 ounces of lead. Fred also determined that the bar was 50% lead. What was the total weight of the medal bar in ounces?

Starting at home, emily traveled uphill to the hardware store for 606060 minutes at just 666 mph. she then traveled back home along the same path downhill at a speed of 121212 mph. what is her average speed for the entire trip from home to the hardware store and back?