13ab+15ab I’m in 6th grade and I need big help

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

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Given ab and cb are tangents of p, and m =10°. what is the measure of abp?