"the cost of a telephone call is  $0.75  + $0.25 times the number of minutes. write an algebraic expression that models the cost of a telephone call that lasts "

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.

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Find the midpoint m of z1=(8+5i) and z2=(12+3i)