Please help! I can't figure out the retained earning for franchises and rents, or the amortization expense for patents?

Please help! I can't figure out the retained earning for franchises and rents, or the amortization expense for patents? Finally, what are all the reflecting balances for franchises, prepaid rent, patents, & goodwill? Thank you

Sheridan Co., organized in 2016, has set up a single account for all intangible assets. The following summary discloses the debit entries that have been recorded during 2017 and 2018.