Liv wants to buy a new pair of jeans for an upcoming party. she finds a pair she likes that was originally priced at $50 and is now on sale for $42. what is the percent of discount for this item?

a.) 16%
b.) 18%
c.) 20%
d.) 25%

in mathematics, a function is a relationship between two variables such that the value of one of the variables, called the dependent variable, is determined by the value of the other variable, called the independent variable. there is a specific term we use to describe the set of independent variables of a function.