A multi-unit office building owner spent $20,000 last year to replace 20 doors in a 100-unit office building. What annual expense would be projected for replacement if all
units had three doors? Assume a 10-year life for all replacements.
a $1,000
b. $20,000
c. $30,000
D.300,000

You’re repairing a large rectangular aquarium. the final step is to cover the glass with a protective film. the front and back of the aquarium measure 4 meters by 2 meters, and the sides of the aquarium measure 3 meters by 2 meters. how many square meters of protective film do you need? ( )

An arc subtends a central angle measuring 7pi/4 radians what fraction of the circumference is this arc?

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?