Answer: 10
Step-by-step explanation: 2+4+4
first triangle: 2*2/2 = 2
square: 2*2 = 4
second triangle: 2*4/2 = 4
add them and you get 10
The average will be the total points divided by the number of games:
(x+y+z) / 3
Distribution
Addition
Subtraction
Division
When you see the subtraction<span> (</span>minus<span>) sign followed by a </span>negative<span> sign, turn the two signs into a plus sign. Thus, instead of </span>subtracting<span> a </span>negative<span>, you're adding a </span>positive<span>, so you have a simple addition problem.</span>
Answer:

Step-by-step explanation:
The depth function is:

After 3 minutes, a submarine had descended to −320 feet.
This means that
. So


After 8 minutes, the submarine had descended to −420 feet.
This means that
. So


From the first equation:

So





And

So
