Answer:
20.669
Step-by-step explanation:
Answer:
More on supplies than she earned in sales.
Surface area of a cube: 6 ( edge lenght )^2
A cube has 6 square faces, so we have to multiply the area of each face by 6.
Replacing:
SA = 6 (7)^2 = 6 (49) =294 squared units
Given:

To find:
The function
.
Solution:
we have,

Put g(x)=y.

Interchange x and y.

Isolate y.



Substitute
.



Therefore, the correct option is (3).
Answer:
√9
Step-by-step explanation:
√9 is a rational number because it's a perfect square.