What is 10% tax on a bill of $18.52? (round to the nearest cent.)

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

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

The ph level of a blueberry is 3.1 what is the hydrogen-ion concentration [h+] for the blueberry