There are 20 stitches per panel on a soccer ball. a soccer ball has panels. how many stitches in all are on a soccer ball

32*20= 640. There are 640 stitches on a soccer ball. 

C. i believe it is (5×(-20))+(100×(0.7))

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)