2nd one, x^2 + 8x + 4
add 2x^2-x^2, 6x+2x, -3+7
Answer:
The answer is D because, John is gonna keep running the multiples of 8.
Step-by-step explanation:
8X2= 16
Answer:
30+(−17) is the answer
Step-by-step explanation:
Answer: 
Step-by-step explanation:
The surface area of a rectangular prism can be calculated with the following formula:

Where "l" is the length of the rectangular prism, "w" is the width and "h" is the height.
In this case you can say that the length, the width and the heigth of this rectangular prism, are the following:

Knowing these values, you can substitute them into the formula shown before:

Finally, you must evaluate in order to calculate the surface area of the rectangular prism.
You get that this is:

2, 67, and 83 are all prime. 63 and 91 are composite. For the bottom question the answer is A and B.