(3x^2+ 2r-8)-(2r^2-4x+7) what is equivalent to this

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.

Write the pair of fractions as a pair of fractions with a common denominator

If value of cos330° is √3/2 then find tan165°.