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We are seeking inverse of 8/50 which equals 42/50 = 21/25

Step-by-step explanation:

I could see the answer but thought explaining would help.

We simply count up the events = 50 and match the value shown in the bar chart for spinning 1, then use the inverse as the question specifies opposite, did not get 1. This probability  = 8/50 events. rounded to 21/25.

2

step-by-step explanation:

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4