Answer:
8cm
Step-by-step explanation:
Since the area of a square is Side X Side (s x s) it is also s². The s² is also equivalent = 64cm². To find the length of a side you do the √64cm² and you get 8cm for a side. Great Job!
Answer:
Option B
Step-by-step explanation:
you should add both the powers that is
2/5 +2/9
28/45
Answer:
4
Step-by-step explanation
Formula: <em>b * h</em>/ 2 (Base times height divided by 2)
4 x 2 = 8
Divide in half
8/2 = 4
It gives 3 choices of toppings, and asks for the number of ways to arrange two toppings. Using the formula they give, n = 3 and k =2. So:

Thus, the answer is 3.