find the range in kilograms of these weights 8kg,5kg,2kg,7kg and 4kg
42+34
3*3-3/3+3=
42-34
42=34
9x + 13y + 7=0 & 7x - 6y + 1 =0
2x + 4 = 2
find the range of these numbers 4,7,3,6,2
find the range of these numbers 2,5,7,11,16
