What is the markup percent of $50 to $55

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.

Select all the expressions that will include a remainder.

Find two numbers if their sum is 91 and the ratio is 6: 7?