500mm is 50 cm so you can either say it is 80cm or 800mm.
Answer: 14x
Step-by-step explanation:
The answer is


Logarithm both sides of the equation:

Since:

, then:

Back to our equation:
Answer:
The solution for x would be 4.
Step-by-step explanation:
2x - 1 = 7
The value of x is unknown, but you do know that you are multiplying 2 by x. So, if you rewrite the equation as 7+1=2x, you know that 8=2x. If you then divide both sides by 2, you're left with 4=x which would mean that the variable x has a solution of 4
Answer:
B. 0.72
Step-by-step explanation:
8/11 = 0.72