**Answer:**

7 Stacks

**Step-by-step explanation:**

Set up the porportion- <u>**6/7 and 3/28**</u>

Find the LCF (least common factor) between 7 and 28- <u>**28**</u>

7 goes into 28 four times, so you multiply 7 and 6 by 4 and end with the fraction- **<u>24/28</u>**

now you find the number of stack you can make by dividing 3 into 24 and that leaves you with the answer <u>**7 Stacks.**</u>

**Answer:**

1: 76°

2: 76°

3: 104°

4: 76°

**Step-by-step explanation:**

1: 76°

2: 76°

3: 104°

4: 76°

**Answer:**

**Step-by-step explanation:**

Lifeguard=x

tutor=35-x

7x+10(35-x)=290

7x+350-10x=290

-3x=-60

x=20 hours as a lifeguard ($140)

35-x=15 hours as a tutor ($150)

adds to $290.

Hope that helps! :)

**Answer:**

n < 9

**Step-by-step explanation:**