please help solve this problem

A 30 year matunty 7 Th coupon bond paysag coupons sectiariually is calinble in fve years ot a call petce of 51,010 . The hond cinterib. a. What is the yleld to call annualy? (Do not round intermediate caiculations. Round your aniswer to 3 decimal places.) b. What is the yield to caif anmusty if the cal poice is only $960 ? (Do not round intermedinte calculations. Aound your answer to 3 . decimal places.) c. What ia the yield to call annually if the cail price is $1,010, but the bond can be called in two years insteod of tive yoars? (Negative amounts should be shown with a minus sign. Do not round imtermediate caleulntions. Round your answer to 3 decimal plnces.)