Write a word problem which can be solved using the expression 2x+50

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.

Janet drove 300 miles in 4.5 hours. write an equation to find the rate at which she was traveling

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11