What is the simplified form of (x+5)/(3x+4) + (x+4)/(x+3) a. (2x+9)/(4x+7) b. (4x^2+24x+31)/(3x^2+13x+12) c. (4x^2+24x+31)/(4x+7) d. (2x+9)/(3x^2+13x+12)

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.

Based on the figures as marked, /\rqs = —

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?