At 10: 00 a. m. a radioactive material weighed 2 grams, but at 6: 00 p. m. it only weighed 0.45 grams. write an equation and find the hourly multiplier and percent of decrease. explain your answer.

! i'm struggling in my 8th-grade class and i need to know the answer!

Which of these is and example of a literal equation? a) 6+30=6^2 b)3x-4y c)12=9+3x d)ax-by=k

Which one ? is the answer and how to find this answer

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