In the proportin 1/z=4/5÷8 which number is equal to z in the proportion

Because of your favorite lemonade it is $3.84 for 3 gallons. write this as an unit rate

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?

Find the cosine function that is represented in the graph.