WACC + Business Valuation

Hi sir, I have 2 questions from F9 Kaplan final assessment 2015:

Q. ordinary shares of 50c each $5200
reserves $4850
9% pref shares of $1 each $4500
14% irredeemable loan note $5000
total long term funds = $19550
the ordinary shares are quoted at 80c ex-div. Assume that the market estimate of the next ordinary dividend is 4c, growing thereafter at 12% per annum indefinitely. The preference shares, which are irredeemable, are quoted at 72c and the loan notes are quoted at par. corporation tax is 35%. Find WACC.

I am confused about what the mv of loan note is to find out cost of debt. is it $100?

Q. Land and building in 2004 were $850 and in 2005 were $850. Plant and equipment (net) in 2004 were $1450 and in 2005 were $1350. Inventory in 2004 was $1025 and in 2005 were $1400. Total net assets were $2325 in 2004 and $2575 in 2005. ordinary shares (25 cents) were $750 in 2004 and $750 in 2005. The value of freehold land and building (never valued) has fallen by 25% since purchased due to recession. The replacement cost of plant and equipment is $1500 but it’s current realisable value is $1125. $180 of inventory is obsolete and could only be sold for $10 as scrap. Estimate the value of share using asset based value.

i am confused about the dealing with plant and equipment. But i want to know how asset based value is taken out.

Thank you in advance!