Pls help me with this work sheet i will give brainliest and 50 points

10% of 1,900,000. show me how you got the answer

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

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