Do for Activity based method, double-declining balance method, and straight line method.

Please show ALL steps so I can understand how the math workd for these methods.

Thank you!

[The following information applies to the questions displayed below.] University Car Wash purchased new soap dispensing equipment that cost $249,000 including installation. The company estimates that the equipment will have a residual value of $25,500. University Car Wash also estimates it will use the machine for six years or about 12,500 total hours. Actual use per year was as follows: Prepare a depreciation schedule for six years using the activity-based method. (Round your "Depreciation Rate" to 2 decimal laces and use this amount in all subsequent calculations.)