Find the density ( use the triangle formula) Write the formula & show all three steps. Volume is 23 ml Mass is 18g

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Three baby penguins and their father were sitting on an iceberg 0.50.50, point, 5 meters above the surface of the water. the father dove down 4.74.74, point, 7 meters from the iceberg into the water to catch dinner for his kids. what is the father penguin's position relative to the surface of the water?

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.