Calvin found census data for the population of Idaho from 1870 through 2000. He made the chart and scatter plot using this data.

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second