Explain three ways to find the gcf if two or more numbers

Apark is in the shape of a rectangle. the park authorities are planning to build a 2-meter-wide jogging path in the park (shown as the shaded region in the image). what is the area of the jogging path? plz

1.two more than the quotient of a number and 6 is equal to 7 use the c for the unknown number translate the sentence into an equation

If there is 20 dogs in the shelter and 5 dogs get homes, and then 43 more dogs come. how many dogs are there in the shelter?