Answer:
$10,974.45
Explanation:
coupon rate 4.5%, semiannual = 2.25%
20 years until maturity = 40 periods
market rate 3.8%, semiannual = 1.9%
par value $10,000
market price of the bonds = PV of par value + PV of coupon payments
PV of par value = $10,000 / (1 + 1.9%)⁴⁰ = $4,710.13
PV of coupon payments = $225 x 27.84144 (PV annuity factor, 1.9%, 40 periods) = $6,264.32
market value = $4,710.13 + $6,264.32 = $10,974.45