225-175=50
175-50=125
125 chidren liked both chocolate and pistachio ice cream.
Check: 398-123=275
275-125=150
225-125=100
175-125=50
100+50=150
150-150=0
Yes, 18 x 2 + 36, therefore the student was correct
To be honest i really dont know but if i have it i would tell u
<em>Thank you very much for the points friend! It's helping</em> a lot!
The real answer is y=-1/2+9 !