A $3000, 8.5% bond redeemable at par in seven years bears coupons payable annually. Compute the premium or discount and the purchase price if the yield, compounded annually, is 7%, 8%, and 9%. The purchase price of the 7% yield bond is _____$. The 7% yield bond is sold at a premium of ______$. The purchase price of the 8% yield bond is __________$. The 8% yield bond is sold at a premium of _____$