Asap, 70 points, three questions (:

The measure of an angle is 117°. what is the measure of a supplementary angle?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

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 %