Hi, i don't feel very confident about my work in this calculus problem and i would appreciate it if anyone else could note any corrections or ways to improve my answers. my problem is split into parts a, b, c, and d and my work is in green. you!

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.

(5 – 7)2

Step-by-step explanation:

(5 – 7)2 equals 4