Which relatives between x and y in the equation shows a proportional relationship? a.) y = x - 2 b.) y = 8x c.) y = x/2 + 2 d.) y = 4x + 2 need asap!!

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.

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

If square root x = -7, then x= -49 true or false