**Answer:**

I believe the answer is C. 674 because the surface area of the pyramid is approx. 682.64569.

**Step-by-step explanation:**

I'm sorry I could be of more help.

**Answer:**

3 12/18 or 3 2/3

**Step-by-step explanation:**

you subtract them but since 11 is smaller than 17 you add 18 to it which then you subtract that by 17

**Answer:**

answer is a

**Step-by-step explanation:**

**Answer:**

20

**Step-by-step explanation:**

is the equation in standard form

100 is the square of the radius, so the radius = = 10

The diameter = 20

**Step-by-step explanation:**

2/3=0.66666666666

4/5=0.80000000000

10 rational numbers between them

0.7, 0.71, 0.72, 0.73, 0.74, 0.75, 0.76, 0.77, 0.78, 0.79