If the constant of proportionality between X and Y is 1/2 which equation represents their relationship? A) Y=2X
B) Y/2=X
C) Y=X+1/2
D) Y+ X/2

Explain if u can

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.)

100 points, hi, i’m not sure how to get the equation from the graph and table.

Give me the equations of two lines that have the same slope but are not parallel.