Lucy solves 1.8 ÷ 0.3 using the diagram shown. One group of ten tenths and one group of eight tenths divided into six groups of three tenths. Use the drop-down menus to explain her reasoning. Lucy divides into groups of .

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

He weights of 2-pound bags of best dog food are approximately normally distributed with a given mean  and standard deviation  according to the empirical rule, what percentage of the bags will have weights within 3 standard deviations of the mean? 47.5%68%95%99.7%

If sin(x) = 0 and cos(x) = 1, what is tan(x)?