3. Match the graph of the function with the function rule.

A. y = 3 • 2^x
B. y = 4 • 3^x
C. y = 2 • 3^x
D. y = 1 • 3^x

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.)

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?