Atotal of 5 1/4 cups of baking soda was used for the muliple trials of science experience each trial used 3/4 cup of baking soda. how many trails were conducted

Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5

Which of the following is true for the relation f(x)=2x^2+1

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