15¢ per piece. philip buys 14 pieces and spends $3.22.

What is the answer to |-2x-5|-|-4+8| and x=7

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

What is the greatest number of parts of a circle that can be formed by cutting the circle with 7 straight cuts? (note: the parts do not have to be equal in size)