If you could please show all work that'd be really helpful thanks!!

Find intersections and unions of the {allowing given sets. 13. Ten students from a seheel appear in one or more subjects for an inter schnel quiz competition as Shawn in the table given below. Let G represents the set of students appearing for General Knnwledge, Mrepresents the set n'fsmdents appearing for Math, and .5 represents the set of students appearing for Science. Find 91"\" and GU 5: \f5. Astronomers classifyr stars according to their brightness by assigning them a stellar \"magnitude." The higher the magnitude the dimmer the star. ThB dimmest stars visible to the naked eye have stellar magnitudes of 6. The table below shows the relative brightness of dierent stellar magnitudes. _----nn IlEItI-M 3. Find an equation that gives the relative brightness in terms of stellar magnitude. h. Use this equation to nd the relative brightness of a star with magnitude 9. {SHOW WORK]