Caroline walks 9 1/2 inches per second. Give a unit rate of Miles Per Hour.

Witch represents the inverse of the function f(x)=1/4x-12

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

Mario has $14.35 left in his wallet. he spent $148.43 for tablecloths. then, he spent $92.05 for napkins. how much money did mario have in his wallet to start with?