Yall have to help me no links

no we don't necessarily HAVE to help but it is nice for those who do help

Step-by-step explanation:

The first one is 270, the second one is 810

Each complete cleaning requires 6 drops of cleaner.  Let's convert that to ml:

6 drops     1 ml              3 ml cleaner
* = = 0.3 ml cleaner per cleaning
                 20 drops      10 cleanings

Recall that 1 bottle contains 30 ml cleaning fluid.

How many cleanings is one bottle of fluid good for?

1 bottle       0.3 ml
=   => x = 100 cleanings/bottle
      x            30 ml