Answer:
-5xa^2-7a^3+7a^2+4
Step-by-step explanation:
Carpet Master would be cheaper because 6 x 9 would be 54 $$$
Answer:
a₆ = 6
Step-by-step explanation:
There is a common ratio r between consecutive terms in the sequence, that is
r =
=
=
= - 
This indicates the sequence is geometric.
To obtain any term in the sequence, multiply the previous term by r, thus
a₅ = 216 × -
= - 36
a₆ = - 36 × -
= 6