Answer:
p=
Step-by-step explanation:
30100 have dogs, 18100 have cats.
The question simply asks for a union scenario thus the law of AND & OR is applicable.
Therefore:-Those who have both cats and dogs partially have cats.

Answer:
Complementary angles.
Step-by-step explanation:
Notice that
and
, by given.
, by sum of angles.
, by supplementary angles definition.

Which means,

Therefore,
, in other words, angles a and b are complementary by definition.
(12)1.057=12.684
The answer is D. 12.684qt