You're pretty close. It's all in the details.
A. Correct.
B. Correct.
C. Sign error in the boxed answer. -(-0.5) = 0.5
The graph shows c ≈ 1.855. If a is more than that and decreasing, area is increasing. The sign of dA/dt will be positive. (Compare to D)
D. Units are not shown. Numerical value is correct.
I believe the answer is 40%. I hope this helps!
Answer:
i think its b
Step-by-step explanation
because there are 6 slices and there is 1 red soo
i think its b
sorry if its wrong
but i think its b