Answer:
recyclble materials include Milk bottles, news papaers and soda cans
the rest is compost
20 items is the total
13 are recycble
13/20 as a decimal is 0.65
multiply by 100
and answer is
<h2><u><em>
B.65%</em></u></h2>
Step-by-step explanation:
In cylindrical coordinates, we take



so that
.
We have

and the integral is

Zx because letters always have to line up woth each other c is place z and a is place x (i loved this unit )
70 ( and i have to type enough characters to submit )