Someone me with this: 1000/(1.07)^25

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)

What adds to be the bottom number but also multiplies to be the top number with 8 on the bottom and 15 on top

Tom travels between the two mile markers shown and then finds his average speed in miles per hour. select the three equations that represent this situation.