One hundred and 50 people were asked whether they like to see comedies or dramas and whether or not I buy popcorn from for the movie out of 90 people that like comedies they bought popcorn day or 40 people that said they do not buy popcorn

Hi my sisters and brothers can tell me the answer because i don’t understand the question

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 of the following constants can be added to x2 - 3x to form a perfect square trinomial?