answer both a and b please!

Purchased a computer network system for $150,000 on April 1. The computer system has an estimated useful life of 10 years and no expected salvage value. Using the straight-line method, calculate the book value at the end of year 2. $26,250 O $123.750 $120,000 $30,000 If a bond is issued as a discount: The interest expense recognized will equal the interest paid at each interest payment date The amount of interest paid on each payment date is altered from the orignal rate promised. The interest expense recognized will exceed the interest paid at each interest payment date. The interest expense recognized will be less than the interest paid at each interest payment date