How you use counting outside of school

Which of the fallowing best completes the sequence 5,10,15, a) 30 b) 22 c)25 d)35

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

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.