Respuesta :

Answer:

30). x=36

(31). a=35

32. n=104

33. n=30

34. y=120

35. b=135

Step-by-step explanation:

x/4=9

cross multiply

x=4×9

x=36

a/5=7

cross multiply

x=5×7

x=35

(repeat thesame steps over and over)