September $6,2022.$ On September $20,2022,$ Wildhorse paid $$2,600$ for installation and testing of the equipment. The equipment was ready for use on October $1,2022.$

usage is as follows:

$($a$)$

Determine the cost of the equipment.

Cost of equipment $

$($b$)$

The parts of this question must be completed in order. This part will be available when you complete the part above.

$($c$)$

The parts of this question must be completed in order. This part will be available when you complete the part above.