Math I don’t wanna do

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?

Which value of m will create a system of parallel lines with no solution? y = mx - 6 8x - 4y = 12

Find the nonpermissible replacement for binthis expression.b2/5b +5