What is a seven letter word (or phrase) used to show division in a word problem?

Given the function f(x) = log base 4(x+8) , find the value of f^-1(2)

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?

Find the value of x for which line a is parallel to line b