I believe the answer is B., weight when sold because it is dependent on x, the time(feed for one year).
Answer: 2t-3.5
Step-by-step explanation:
You multiply the numbers inside parentheses by 1/2.
Then you simplify.
950 * .05 = $47.5
550 * .04 = $22
$47.5 + $22 = $69.50 interest earned
answer: amount in 4% account = $550