Combine the like terms to make a simpler expression: 5n+6+(-7n) plz hurry

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 focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x