In 1-4, use the properties of exponents to write an equivalent expression for each given expression. I really need help on these problems.

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?

When you answer this can you explain

[tex]5 \times1 \frac{12}{13} [/tex] me