For a complex reaction, the reaction progress curve .

Arecipe calls for 2 cups of flour to make a cake. you look in the stock room and see a bag of flour that has a tag that says this bag contains 25 cups of flour. how many complete cakes could you make from this bag of flour?

Rick is on a bicycle trip. every 4 days he bikes 230 km. if rick keeps this same pace for 16 days, how many kilometers will he bike?

When do you think it’s best to take the psat (what grade year / when in the year)?