After dinner 2/3 of a pan of lasagna is left

What situation is an example of an observational study

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.

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?