What is the value of x in the equation 1 / 5 x - 2 / 3 y equals 30 when y equals 15

Without graphing the linear functions, find the coordinates of the point of intersection of their graphs: y=3x−11 and y=4

Which term best describes the association between variables a and b? no association a negative linear association a positive linear association a nonlinear association a scatterplot with an x axis labeled, variable a from zero to ten in increments of two and the y axis labeled, variable b from zero to one hundred forty in increments of twenty with fifteen points in a positive trend.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?