Help me out thankyou​

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.

Which of the following is missing in the explicit formula for the compound interest geometric sequence below?

I’m really confused and need your assist me with this question i’ve never been taught