An adventurer is exploring a new area. She tells her friend that she is 43 feet from sea level. Which could be her current elevation? Select all that apply. −143 −43 −43% 43 143 86 |−43|

Dan ended a hike at an elevation of 951 metres above sea level. He had started at an elevation of 178 metres above sea level. What was Dan's change in elevation?Write your answer as an integer (for example, -3).

Luella went scuba-diving off the coast of Key Largo, FL. She reached a lowest elevation of −24 feet. Luella’s scuba diving instructor was watching her from a nearby hill with an elevation of 18 feet.Which statement correctly compares the distance that each person was from sea level?

Jenny is riding in a bike race that goes through a valley and a nearby mountain range.The table gives the altitude (in feet above sea level) for the five checkpoints in the race.Use the table to answer the questions.Checkpoint Altitude(feet above sea level)1 −1742 2,8553 1,2824 −535 −92(a) How much higher is Checkpoint 4 than Checkpoint 5?fthigher(b) The top of a hill rises 343 feet above Checkpoint 1.What is the altitude of the top of the hill?ft

Martha observed a boat from the top of a 74.5 m cliff. She noted that the angle of depression to the boat was 22.70How far is the boat from the base of the cliff ?Round to the nearest 2 decimal places. (Put the numbers only in the box, do not enter any units.)

Sheila is climbing on a ladder that is attached against the side of a jungle gym wall. She is 4 feet off the ground and is 3 feet from the base of the ladder, which is 15 feet from the wall. How high up the wall is the top of the ladder?The ladder is attached to the wall of the jungle gym at a height of feet.