Identify the distance between points (3,8,0) and (-2,9,-4), and identify the midpoint of the segment for which these are the endpoints. Round to the nearest tenth if necessary.

Help ASAP please.

How is working backward similar to solving an equation?

Plz hurry evaluate the expression a+b where a=8 and b=19

The map shows the location of the airport and a warehouse in a city. though not displayed on the map, there is also a factory 112 miles due north of the warehouse.a truck traveled from the warehouse to the airport and then to the factory. what is the total number of miles the truck traveled?