Use a special product pattern to evaluate 12^2 – 9^2
The value is

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

Anyone know? will mark brainliest if correct

Shane can shovel the driveway in 4 hours, but if his sister it would take 2 hours. how long would it take taylor to shovel the driveway alone