Solve for X. Please help ASAP. I have no idea how to do this and it’s due really soon!!

Factor completely. 4p^2 + 36p + 81 express the answer in the form (ap + b)^2

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?

Multiply. write your answer in simplest form. 3/8 x 5/7