DeSean is sorting his toy car collection. ⅔ of the cars are sports cars. ¼ of the remaining toys are pick up trucks. All of the
other toy vehicles are fire trucks. What fraction of the toys are fire trucks? If DeSean has 3 fire trucks, how many toys does he have in his entire toy car collection?
You apply the sum of interior angles formula ie. (n-2)180. n=number of sides since a pentagon has 5 sides it will be (5-2)180=540. now add everything. x-5+x-6+2x-7+x+2x-2=540. Solve for x: 7x-20=540 7x=540+20 7x=560 x=560/7 x=80