hi there pls help me out with this question ( this unit is called systems of linear inequalities)

4. Ed found spiders and crickets in his storage room. . There were 20 or fewer spiders and 20 or more crickets. . There were 45 or fewer crickets and spiders, in total. Spiders have 8 legs, and crickets have 6 legs. a) What combination of spiders and crickets would have the greatest number of legs? b) What combination would have the least number of legs