THEOREM 4-Show that every positive odd integer is of the form(6m+1) or (6m+3) or (6m+5) for some integer m

Prove that the value of the expression 7^8–7^7+7^6 is divisible by 43.

Sue's average score for three bowling games was 162. in the second game, sue scored 10 less than in the first game. in the third game, she scored 13 less than in the second game. what was her score in the first game?

Ntriangle abc, m∠a = 35° and m∠b = 40°, and a=9. which equation should you solve to find b?