Herman and rosie need to wash the walls on the side of the school. herman has a power washer, which could complete the job in 10 hours. rosie has a manual scrubber, which could complete the job in 15 hours. if they work together, how many hours will it take them to clean the wall?

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.

When y’all answer can y’all explain too !

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!