Answer:
A. Total earnings for $115,000 in sales is 43,880 B. Commission on $155,000 is $8,525.
Step-by-step explanation:
Answer:
0.2 seconds
Step-by-step explanation:
The graph of b(t) = -16t^2 + 5t + 15 is a parabola opening downward. The maximum value of b(t) occurs at the vertex. The t-coordinate of the vertex is t = -5 / (2(-16)) = 5/32 = 0.15625 sec ≈ 0.2 sec.
Non proportional you can see by the way the graph is
