How to subtract fractions

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.

How do you determine if an ordered pair is a solution to a given equation?

Indicate the formula for the following conditions: p^c(n, r)=