Triangular pyramid would describe the shape.
Answer: 2.50
Step-by-step explanation: your answer is 2.50
They travelled 3 and 5/6 miles, then drove 2 and 2/6 more the next day. To find the total, you must add them up. So...

They travelled for 6 and 1/6 hours, or 6 hours and 10 minutes.
I could be wrong because I didn’t take business calculus, but i guess it’s the same as regular calculus.
So I assumed that the revenue is equal to the price times the amount produced: R=px
Now differentiating, I get: dR/dt =pdx/dt +xdp/dx. I used the product rule
But Mr. Kong wants his revenue constant ? So I assume that dR/dt=0
Plug in values and solve dx/dt. Please message me back. I want to see if I got it write
The answer would be $17.32. The tip would be $2.14. And the sales tax would be $0.93.
If you add them altogether you get $17.32