Find the length of arc rs. use 3.14 for pi. round to the nearest tenth. 150

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.

Measure of angles 31 (x+4) (3x+9) me

I'm confused on this could anyone me and show me what i need to do to solve it.