I am stuck on this, can someone explain the answer? Thank you.

value 1000 points Speedy Delivery Company purchases a delivery van for $43,200. Speedy estimates that al the end of its fourryear service life. the van Will be worth $6'BOO. During lhe fouriyear period the company expects to drive the van 221500 miles. Aduai miles dn'ven each yearwere 58000 miles in year 1 and 62.000 miles in year 2. Required: Calculate annual deprecialrcn fur the rsl twp years of the van using each at the fuliuwrng methods, [Do not raund your intermediate calculatinns.) 'l, Slraighlrline, 2, Double-declining-halanoe 3, ACIrvityhased