Respuesta :

Answer:

the first one is 55, the second one is 13

Step-by-step explanation:

1. 3(20)-5=55 first you multiply 3 by 20 to get 60, then you subtract 5 from that to get 55

2. 18/2+4=13 first you divide 18 by 2 to get 9, then you add 4 to that to get 13

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