Which of the following types of electromagnetic radiation has the longest wavelength? radio waves ultraviolet waves visible light x-rays

Can someone answer these problems for me

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

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x