Answer: 8r = 256 is the expression. There are 32 rooms on each floor.
the roots are
and 
Step-by-step explanation:
here we use Shridhar acharya formula
if a
+ bx +c = 0 is the quadratic equation
the the roots are ,
and 
comparing with the equation we get a=1 b= -7 c = -3
hence the roots are
and 
=
and 
Answer:
is a one to one function
Step-by-step explanation:
it is a one to one function
12 cm is your answer
you just multiply 2 times 6 which is 12