Answer: 14x^5 + 17x^4 - 87x^3 + 60x^2 + 15x - 18
Step-by-step explanation: You would need to simplify the expression by using distributive property.
a
0
=
4
a
i
=
a
i
−
1
+
7
XXXX
possibly with the restriction 1<=i<=4 if this is not intended to be a continuous sequence
Explanation:
This is a simple arithmetic sequence with a difference of
7
between ascending sequence terms.
Answer:
the first one
1, 2, 3, 4, 6, 9, 12, 18, 36
The answer: 42s+54
Explanation: (6)(7s+9) you break it up and do
(6)(7s)+(6)(9) which gets you the answer.
I got $31.25 it might be wrong i used a calculator.