The average (arithmetic mean) of t and y is 15, and the average of w and x is 15. what is the average of t, w, x,and y

Stefano accidentally dropped his sunglasses off the edge of a canyon as he was looking down. the height, h(t), in meters (as it relates to sea level), of the sunglasses after t seconds, is shown in the table. during its descent, the pair of sunglasses passed by a climber in the canyon 6 seconds after stefano dropped them. to the nearest meter, what is difference in elevation between stefano and the climber? 166 meters 176 meters 230 meters 240 meters its b.176 i took the test 166 is wrong and 176 is correct

5, 6, 10 question: a. determine whether the side lengths form a triangle. (explain your reasoning) b. if it is a triangle, determine whether it is a right, acute, or obtuse triangle. (show your work)

What is the purpose of this chart? a. to show the populations of the largest cities in the world b. to show the populations of major cities today c. to show the populations of major cities in 1500 d. to show the populations of major cities in europe