HELP, I don’t understand as this is due today

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

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

Y+ 2/y is it a polynomial in one variable or not? and if so, why?