Atrain travels 93 kilometers in 4 hours, and then 78 kilometers in 5 hours. what is its average speed?

Why do interests rates on loans to be lower in a weak economy than in a strong one

Aregular pentagon with a perimeter of 21 inches is dilated by a scale factor of 5/3 to create a new pentagon. what is the perimeter of the new pentagon?

The coordinates of vortex a’ are (8,4) (-4,2) (4,-,4) the coordinates of vortex b’ are (6,6)(12,-,12)(12,12) the coordinates of vortex c’ are(-2,,12)(4,12)(12,-4)