Select all numbers that are irrational. π 3.14 0.5 10/49−−√

Can some one me, i’ve been asking for so long

Given tan∅=4/3 and π< ∅< (3π)/2; find cos2∅ a. -24/25 b. 24/25 c. -24/7 d. -7/25

John checked his watch and said that it is thursday, 7 am. what will the day and time be 2006 hours plzzz i will give you 100 points