Answer:
its E 21
Step-by-step explanation:
Answer:
C is 27 and d is 16
Step-by-step explanation:
count how many cubes are on the first level and multiple but how many it goes up too
Answer:
The answer is 18.2.
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
Answer:
The answers are in the image.
Step-by-step explanation:
Charlie made the mistake by not getting the equation equal to zero.

Subtract 16 to both sides making it equal to 0.

Using Quadratic Formula to Solve for x.