$47.88 your answer and I am the most important person in the world.
Answer:
i beleive that B is the best option
Answer: 
Step-by-step explanation:
Remembert that, by definition:
→ 
Then, you can rewrite
in exponential form:

Now you can solve for the variable "x":
Add 6 to both sides of the equation:


And finally you must divide both sides of the equation by 2, then:

Answer:
1.) : You should buy the second one (16cm x 45cm)
2.) : Between the smallest and the biggest vases, the cone face holds 396 more water than the smallest one.
Step-by-step explanation:
10 x 40 = 400
16 x 45 = 720
18 x 18 = 324
———————
720 - 324 = 396