thank you for help with questions 1-4

1)Create a truth table for each statement below: a) AA~B b ) ~ ( ~ A VB ) 2) Use a Venn diagram or a truth table to check the validity of the next statement: "If you are a triathlete, then you have outstanding endurance. LeBron James is not a triathlete. Therefore , LeB does not have outstanding endurance." 3)See the pattern below, make a conjecture and try to prove it: 1 =1 (=12) 1 + 3 =4 (=22) 1+3 +5 =9(=32) 1 + 3 +5+7 =16 ( =42) 4)A company wants to decrease their energy use by at least 15%. a)If their electric bill is currently $2,200 a month , what their bill will be if they are successful? b)If their next bill is $1,700 a moth were they successful? Why or why not