This is the number of combinations of 2 from 23
23C2 = 23! / 2! 21!
A quick way to do this is 23*22 / 2 = 253
no offence but how r we supposed\ to help me when there is nothing to look at bro
A. is right
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P+5= -2
p= -7 ( I subtracted 5 to both sides of the equation)
