Someone and explain the first one so the half life of a radioactive kind of potassium is 12 hrs . how much will be left after 36 hrs, if you start with 64 grams of it? so i did a=64(1/2)^36 power is that the accurate form i need asap
btw this is exponential decay

Figure lmno is located at l (1, 1), m (4, 4), n (7, 1), and o (4, −2). use coordinate geometry to best classify quadrilateral lmno.

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

Factor the polynomial by its greatest common monomial factor.