Answer:
simple. d=3
Step-by-step explanation:
2d+2=8
subtract 2 from both sides:
2d=6
divide 2 from both sides:
d=3
we are given

we can find x , y and z

now, we can use arc length formula

now, we can find derivative

now, we can plug values
and we get



...........Answer
Well 40 divided by 5 is 8 and you don't have options so I would say 8 loads a day :)