7 cm: 35000 cm (7*5000)
2.8 cm: 14000 cm (2.8*5000)
2 cm: 10000 cm (2*5000)
Answer:
The product of 4 times the quantity x to the fifth power
13 should be b and
14 is a because geometric mean to have a common ratio
I think it would be 3 because if you divide 18/6=3
