I need some help with this math problem, can anyone help? No link please!

Abacteria population is tripling every hour. by what factor does the population change in 1/2 hour? select all that apply

*let m∠cob = 50°30’, m∠aob = 70° and m∠aoc = 20°30’. could point c be in the interior of ∠aob? why? a. point c could be the interior of aob but it is not the only case b. point c is the interior of aob c. point c is not the interior of aob d. the given is not possible for the plane geometry answer

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83