Three competing subcontractors are reporting their average work output to a large project leader for a new housing development.

Rosk Construction provided an equation, where w represents the number of full weeks of work and a represents the estimated area of vinyl siding that can be installed in 100 ft2 units.

Equation from Rosk Construction: a = 62w
Fosbert’s Contracting provided a table indicating similar data from two jobs that had recently been completed by its crew.



Durable B Construction provided a graph showing the results of three of its recently completed jobs.



The unit rate for Rosk Construction is

The unit rate for Fosbert's Contracting is

The unit rate for Durable B Construction is