Solve the equation. Select all answers that apply. -y + 6 + y (to the 2nd) = -2y + 2y (to the 2nd)

options:
2
-2
3
-3

Ineed me i stuck and i don’t want to get it wrong

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?

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