What’s the answer pls help ASAP

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

An 18% discount on a watch saved a shopper $72. find the price of the watch before the discount

At noon a tank contained 10cm water. after several hours it contained 7cm of water. what is the percent decrease of water in the tank?