Which pair shows equivalent expressions?
2x+10=-2[x-5)
0 -2(x+5)=2x-10
-2x-10=-2(x+5)
0 -2(7-5)=-2x-10

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

Iknow the answer but the calculator doesn't seem to give the right one

The function representing david's miles per month if f(m)= 115m + 5. what does the 115 represent