pls i don’t get it:(

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

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.

Consider the first four terms of the sequence below. what is the 8th term of this sequence?