While baking, evan discovered a recipe that required 1/2 cup of walnuts for every 2 1/4 cups of flour. how many cups of walnuts will he need for 4 cups of flour?

The ratio pv to nrt is plotted against pressure for ch4 at 0°c and 200°c. why does the curve for 0°c drop below the horizontal line for an ideal gas whereas the curve for 200°c does not?

Amuffin recipe, which yields 12 muffins, calls for cup of milk for every 1 cups of flour. the same recipe calls for cup of coconut for every cup of chopped apple. to yield a batch of 30 muffins, how much flour will be needed in the mix?

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?