4k-5k=-3 (k+5)-3 (7+6k) solve for k.
is this right if not can you show me how to get it right ?

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

Use the elimination method to solve the systems of equations.choose the correct ordered pair. 7x+4y=39

Someone me i need with this stuff