Find the common difference of the arithmetic sequence. 6.5,5, 3.5, 2, ...

The common difference is?

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

Graph y = -|x| + 2. click on the graph until the correct one appears.

Ab and bc are tangent to circle d. find x is ab = 3x + 8 and bc = 26. find x