In 1975 1000 tons of coal was manufactured. it is 10% greater in 1976 and 5% less in 77. what is the final about of coal in 1977

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

Precalculus question, image attached.

Ineed someone to me answer my question i have to have this done and knocked out