Tom bought 768 pounds of candy because 333 + 435 = 768
The shape of this graph is
12.7
Using the Pythagorean theorem, you can easily calculate the length of BC.
So:
BC = sqrt(12^2 - 6^2) = sqrt(144 - 36) = sqrt(108) = 10.39230485
Now consider triangle BCD. You know all three angles and one side. Using the law of sines you know that ratio of the sine of each angle over the opposite side is constant. So:
BC/sin(55) = CD/sin(90)
BC/sin(55) = CD/sin(90)
sin(90)BC/sin(55) = CD
1*BC/sin(55) = CD
BC/sin(55) = CD
10.39230485/0.819152044 = CD
12.68666167 = CD
12.7 = CD
Answer:
Step-by-step explanation:

Could you confirm to me that this is in fact the problem? Do not report. I will edit this answer once you answer my question.
You can use linear equations if something is being raised or decreased with the same linear function. Such as temperature or the amount of books that get sold.