Answer:
15
Step-by-step explanation:
x/2 + 6 / 3 = 4.5
x/2 + 6 = 4.5 *3
x/2 = 13.5 - 6
x = 7.5 * 2
x = 15
Hope u understnad.
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Answer:
I'm not sure but ... 
Step-by-step explanation:
500 divided by 8 is 62.5 so I just rounded it to 63
B to the second means b * b.
The short hand for b*b is b^2 on this editor or

c to the fourth means c * c * c *c
the short hand for c*c*c*c is c^4 on this editor or

The answer you want is b^2/c^4 in the answer box.
If this is wrong and you have choices, please list them and I will edit or put the answer in a comment.
The fourth and fifth term of this sequence is -30 and -10 respectively.
Data;
- first term (a) = -810
- common difference (r) = ?
<h3>Common Difference</h3>
The common difference in a geometric progression is the ratio between two successive terms.
Let's find the common difference in this sequence

The nth term of a geometric sequence is given as

The next two terms of this sequence will be 4th and 5th term.
The fourth term of this sequence is

The fifth term of this sequence is

The fourth and fifth term of this sequence is -30 and -10 respectively.
Learn more on geometric progression here;
brainly.com/question/12006112
The answer is B. 10 9/12 + 2 1/12= 12 10/12. 12÷2=6 10÷2=5 making the answer 12 5/6