What is the answer for this quiestion

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.

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52

Can someone, me with this.i really need with this