Work out 4 x 10 to the power of 3 divided by 8 x 10 to the power of - 5. Give your answer in standard form

Can someone me do math because i am having a breakdown rn because i don’t get it

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?

Are the corresponding angles congruent? explain why or why not.