The lot that dana is buying for her new one story house is 35 yards by 50 yards. dana's house plans show that her house will cover 1,600 square feet of land. what percent of dana's lot will not be covered by the house ? explain your answer.

The figure below shows rectangle abcd and the triangle eca on a coordinate plane. which of the following expressions represents the perimeter of triangle of triangle eca in units

Me. i can't figure out this question. give an explanation too. .

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex