an element with mass 650 grams decays by 12.50% per day. how much of the element is remaining after 8 days to the nearest 10th of a gram

You can download answer here

tinyurl.com/wpazsebu

step-by-step explanation:

total income = price of one ticket   *   number of tickets sold

  y                 =     4                                   x

so the equation is y=4x     with x≥0   because number of tickets sold can not be negative

thus the equation is a semi -line with an end point at

(0,0)

passing through :

x=1     y=4(1) = 4   so through (1,4)