Answer:
3.7 is your answer or 4.0 or 4
Step-by-step explanation:
Divide the number of flowers by 3 and that is how many rows there are
12 / 3 = 4
18 / 3 = 6
21 / 3 = 7
30 / 3 = 10
Inequality has a less than or greater than sign ex: > or <
Equation has equal sign: =
<em>The measure of PQ is 12.72</em>
<h2>
Explanation:</h2>
We have the right triangle ΔPQR and we want to know the measure of PQ. PQ is opposite to ∠R, so from trigonometry we know that:

<h2>Learn more:</h2>
Right triangles: brainly.com/question/10252821
#LearnWithBrainly
<em>To solve for a variable, you have to isolate that variable onto one side.</em>
<h3>1.</h3>
Firstly, multiply both sides by 2: 
Next, divide both sides by a + b and <u>your answer will be:
</u>
<h3>2.</h3>
For this, divide both sides by πr², and <u>your answer will be
</u>
<h3>3.</h3>
Firstly, subtract both sides by 2πr²: 
Lastly, divide both sides by 2πr, and <u>your answer will be:
</u>