Help ill give branliest if right

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom