In math what is the answer to this question. -27•7/9=

First we multiply -27 times 7 which give us a result of -189.
Then we divided by 9.
So the answer is -21.
I we what to check we can multiply -21 * 9 which is -189
Or divide -189 divided by -21 whic is 9

To find how many cm are in a ft, you have to use the method of unit rate:

so we know that 12 in. equals a ft. so,

1 ft

12 in.

and 2.25 cm equals an in. so,

1 in.

2.54cm

then we put the rates together and get:

1ft          1 in.
  X   we cancel out the in. units and get:
12 in.    2.54 cm

Solve and get 1 ft = 30.48 cm