N 19751975, the number of high school dropouts in a country was 52165216 thousand. By 20032003, this number has decreased to 31203120 thousand. Find and interpret the average rate of change per year in the number of high school dropouts.

answer: on graphs, the open and closed circles, or vertical asymptotes drawn as dashed lines us identify discontinuities.

as before, graphs and tables allow us to estimate at best.

when working with formulas, getting zero in the denominator indicates a point of discontinuity.

when working with piecewise-defined functions, check for discontinuities at the transition points where one piece ends and the next begins.

step-by-step explanation:

answer: 72: 111

step-by-step explanation: