Respuesta :

x+y=90
x<2y
x+y< 3y
but x+y=90
90<3y
⇒ y>30
for example y=31, then x= 59
                    y=32, x= 58
.............................................
                   y=40, x=50

Answer:

I got a 100% on this :)

Step-by-step explanation:

1. B

2. C

3. C

4. B

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