Respuesta :

I'm pretty sure you're just solving for x. For example, in 26. You have:
x/18 = 4.5
You multiply both sides by 18 to get the x by itself
x = 4.5 • 18
You simplify this
x = 81
24.  x= 15.625
26. x= 81
28. x= 980
30. x=2