Answer:
(-ab^{2} )^{3}
(-3x^{2} b^{3})^{3}
Step-by-step explanation:
(-ab^2)^3 or 
for -27 x^6 b^9

Answer:
some statements that are true are :
Step-by-step explanation:
it has only 1 line of reflectional symmetry.
a line of symmetry will connect 2 vertices.
a line of symmetry will connect a vertex and a midpoint of an opposite side.
it has 7 fold symmetry.
a line of symmetry will connect the midpoints of 2 opposite sides.
Answer:
the number of dreams that include people you know out of 28 is 21
Step-by-step explanation:
Here is the complete question:
It is believed that about
of our dreams involve people that we know.
So the expression to describe the number of dreams that feature people you know if you have "d" dreams is:

Now using the above expression we can predict number of dreams that include people you know out of 28. Here 28 represents number of dreams i.e. "d". So expression becomes:

Now simplify the above expression:
=
=
= 
Hence the number of dreams that include people you know out of 28 is 21