C) x = -19/10 because when solving it with substitution u get x=-19/10 & y=153/10
Probablity=desiredoutcomes/totalpossibleoutcomes
total possible outcomes=1+2+4+3=10
desired outcomes=4 blue
probablity=4/10=2/5=40%
The answer is A.
Reasoning:
Choice B says to subtract 1/5. However since 1/5 has a variable next to it, it would need to be divided not subtracted
