F(x)=x+7
f(-1)
help!

What number produces an irrational number when multiplied by -1.25

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?

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?