At six flags Great Adventure, the fastest rollercoaster is KingDaKa, which is 50 seconds long. In Canada's Wonderland, the rollercoaster Leviathan is 3 minutes and 20 seconds long. The duration of KingDaKa is what percent of the duration of the Leviathan?

Can someone me with my hwplz(only the circled ones)

Which matrix multiplication is possible?

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?