Which equation can be used to find the perimeter of a regular octagon with sides of length 12?

One of the same side angles of two parallel lines is 20° smaller than the other one. find the measures of these two angles.

What are “like terms”? why can we only add like terms?

Sheila wants to bake six muffins but the recipe is for 12 muffins . this means you only need half of the ingredients listed how much of the of each ingredient does she need? one cup and banana chips ,7 tablespoons oil , two eggs, 3/4 cups flour 1/4 cup walnuts show all you work and justify your answer using a baby toulmin.