Help please ASAP will give brainliest

Determine which expressions represent real numbers and which expressions represent complex number. asaaap! plis!

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose

The stairs leading from the ground to the entrance of a plane forms a right triangle with the ground. if the distance of the stairs measures 22 feet and the ground distance measures 11 feet, how high is the entrance to the plane from the ground? which diagram represents this scenario? / 22ft © 22ft 11 ft 11 ft 22 it