**Answer:**

B

**Step-by-step explanation:**

-8+2=-6 and im pretty sure negative of a power is just a regular power so its B

**Answer:**

**54$**

**Step-by-step explanation:**

**We know that for each 13$ Rob earns babysitting, he saves 9$. Thus, we can separate the money he earns into groups of 13, and for each group of 13, we can add 9$ to his savings.**

**Assume that Rob has 78$ lying on a table. He grabs 13 of them, leaving 65, and puts 9$ to the side for savings. He does this 5 more times (as 65 divided by 13 is 5, so Rob would make 5 groups of 13 out of his 65$ that is left), meaning that he now has 5+1 (the original group) = 6 groups of 9. 9*6=54, so he saves 54$. Please let me know if you have any further questions!**

**mark brainliest :)**

Some examples, depending on how complex the expression is, are:

25-6

2(1+6)+5

4*4+3

0+19

(330-292)/2

1+2+3+4+1+2+3

If you would like to know how many books does Tony have in all, you can calculate this using the following steps:

1/8 of books are mystery books.

3 mystery books.

**1/8 of x equals to 3**

**1/8 * x = 3 ** /*8

x = 3 * 8

**x = 24 books**

Result: Tony has **24 books**.

**Answer:**

<em>start with y</em>

y

<em>add 7</em>

y+7

<em>multiply by 3</em>

3(y+7)

<em>subtract 6</em>

3(y+7)-6

<u>therefore the answer is:</u>

3y + 21 - 6

=

**3y + 15 or 3(y+5)**