Prove that for any natural n: athe number 7^(n+4) −7^n is divisible by 30.bthe number 3^(n + 2) −2^(n +2) +3^n −2^n is divisible by 10.

anyone? find the second, fifth, and ninth terms of a sequence where the first term is 65 and the common difference is -7. 72, 93, 121 72, 79, 86 58, 37, 9 58, 51, 44

Identify the conclusion of the conditional statement. if you live in phoenix, then you live in arizona.

We just started the introduction into circles and i have no idea how to do this.