Answer:
Hello!!! Princess Sakura here ^^
Step-by-step explanation:
The 1st one is:

The 2nd one is:

Hi!
Let's write an equation to solve this.
= ?
Solve
= ?
= ?
310
The answer is $310.
Hope this helps! :)
-Peredhel
Answer:
24$
Step-by-step explanation:
9 / 75% (or .75 it doesn't matter which one) = 12
12 + 12 = 24$
hope this helps...
Answer:
<h2>The area of the spring decreases by 370.52*10⁴cm²</h2>
Step-by-step explanation:
The formula for calculating the area of the circular hot spring =
or 
Initial area of the spring with diameter of 76metres is as shown

If the diameter of the spring decreases by 4 meters over time, the new diameter after decrease will be 76meters less 4 meters which is 72metres.
New area;

Decrease in area = 1444πm²-1296πm²
Decrease in area = 148πm²
= 370.53m²
since 1m²=10⁴cm²
then 370.53m² = 370.52*10⁴cm²