A canoe rental company charges $6 for the first hour and $5 for each additional hour. Which equation can be used to determine y, the total cost of renting a canoe for x hours?
A y = 5x + 1
B y = 5x + 5
C y = 6x - 1
D y = 6x +5

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.)

15 points ! ~ see if you know the answer to both you!

Use the distributive law to multiply. 3(4x + 5y + 6)