a, b and C please

The probabily that brown-eyed parents, both with the recessve gene for blue. will have a child with beown eyes is 0.75. It such parents have 5 children, what is the probabildy that they will have (A) As blue-eyed chllifen? (B) Exactly 4 chlidren with brown eyes? (C) Al least 4 chidren with brown eyes? (A) The probabity of thaving all bive-eyed childen is about (Round ta four decimal places as neoded.)