Answer:
The most obvious one i can think of would be
x = 13
Step-by-step explanation:
x + 8 = 21
x + 8-8 = 21-8
x = 13
C, bc you add up all x’s, which give you 4x. Then you add 0.5,1,1.5 together, which is 3.
3 to the 1st is 3
3 to the 2nd is 9
3 to the 3rd is 27
3 to the 4th is 81
3 to the 5th is 243
3 to the 6th is 729
Could you please clarify the question please by putting a question to be solved? Or are you asking for the definition?
