Respuesta :

irspow
n(75/100)=4.5  multiply both sides by 100

75n=450  divide both sides by 75

n=6cm

Answer: 6 cm

Step-by-step explanation: 4.5 cm is 75/100

75/100=4.5/x

100*4.5=75*x

450=75x

divide both sides by 75

6=x