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John bought 5 lemons and used 2 of them for a salad how much did he use for.a salad . he used % of the lemons.

Find the solution of system of equation y= x-4 y=4x+2

Afamily has five members. a mom, a dad, two sisters, & a brother. the family lines up single file. what is the probabillity that the mom is at the front of the line