M=cost per meal

total cost=mealcost+snacks

mealcost=2 times cost per meal=2m

snackcost=4

total is 16

16=2m+4

2m+4=16

first one is answer

**Answer:**

C

C'

1

1. see attached

2. the figure is reflected in the y-axis

Step-by-step explanation:

1.

The given transformation moves each point horizontally to the same

distance on the other side of the y-axis. This is shown in the attachment.

2.

The given rule ...

(x, y) → (-x, y)

is the most precise description of the transformation. In English, it can be

described as a reflection in the y-axis

**Step-by-step explanation:**

Correct me if I'm wrong

It would be 8 thousands because you just have to write the number in words.

**Answer: for 21: a² - b²**

**Step-by-step explanation:**

**1. you multiply (a + b) ( a - b) **

**first you multiply a times a, gives you a²**

**multiply a times negative b, gives you -ab**

**multiply b times a, gives you ab**

**multiply b times b, gives you b²**

**you have -ab and ab, they will cancel out leaving you with **

**= a²-b² **

**Answer:**

C= -55 is the closest location from the sea level, Because its distance from sea level is 55 m which is minimun among given list.