Answer:
You need to put the answer choices so we can answer the question for you
Step-by-step explanation:
1. Put numbers that are on the same group.
3x = 18-15
(3 has x so it is separated from whole numbers 15 and 18)
(15 became negative because you moved it to the other side of the equals sign)
2. Simplify
3x = 18-15
3x = 3
3. Find x
Transfer 3 on 3x to the right side denominator (bottom)
That will make:
x = 3/3
4. Solve
3 divided by 3 is 1
ANSWER: x=1
Answer:
9(8+1)
Step-by-step explanation:
9(8+1) = 9×9 = 81
72+9 = 81
Answer:
d
Step-by-step explanation:

You can see it's a geometric sequence because the ratio is constant (

).
The nth term of a geometric sequence:


It has to be the sum for term 4 through term 15, so n=4 and the number above the sigma is 15.
Your answer: