s = 6 + e

s + e = 28

We can use this system of equations to find the exact values of s and e.

We have a current value of s, so we can find the exact value of e now.

e + e + 6 = 28

<em><u>Combine like terms.</u></em>

2e + 6 = 28

<em><u>Subtract both sides by 6.</u></em>

2e = 22

<em><u>Divide both sides by 2.</u></em>

**e = 11**

Now we have an exact value of e, and can solve for the value of s.

s = 6 + 11

**s = 17**

**Sophia is 17 years old, and Eric is 11 years old.**

**Answer:**

- to add to the table, continue the arithmetic sequence in each column
- to use the table, extend the third column to 45, or multiply the first row by 9

**Step-by-step explanation:**

The numbers in the first column are an arithmetic sequence with a common difference of 2. The next few numbers will be 6, 8, 10, ...

The numbers in the second column are an arithmetic sequence with a common difference of 3. The next few numbers will be 9, 12, 15, ...

The numbers in the third column are an arithmetic sequence with a common difference of 5. The next few numbers will be 15, 20, 25, ...

To use the table, Mark can extend each sequence until he has a row with 45 in the third column, or he can multiply or add rows to give a result of 45 in the third column. For example, multiplying the first row by 9 gives 18:27:45 meaning that **Mark needs 18 liters of blue and 27 liters of yellow to make 45 liters of green paint**.

**Answer: 8832 divided by 42 = 210 R 10**

**Answer:**

-8/5 or -1.6

**Step-by-step explanation:**

First of all, Equally important, & consequently