4. How long to maturity for the following bonds (round it to the nearest year, e.g. 29.9 becomes 30 years)?

i) Bond A: par value = $1,000; coupon rate = 9%; yield to maturity = 7.4628%; current price = $1,136; annual coupon payments

ii) Bond B: par value = $1,000; coupon rate = 7%; yield to maturity=7.2692%; current price $967.3152; semi-annual coupon payments

Please use formula or financial calculator inputs, no excel. Thank you