




Just remember that in the form of
, you get
.
Answer:
1/9
Step-by-step explanation:
3^-2
Remember that the negative exponent moves it to the denominator
1
---------
3^2
1
-----
9
Answer:
There are 20 ways the pizza can be ordered.
Step-by-step explanation:
Choices available in Sizes = 4
Choices available is toppings = 5
Since these choices are mutually exclusive,
So, by the PERMUTATION RULE
Number of ways a pizza can be ordered is : 4 x 5 = 20
So, there are 20 ways the pizza can be ordered.