Answer:
36 people joined the radio control club.
Step-by-step explanation:
15-3= 12
12*3=36
Answer:
B. 6.2
Step-by-step explanation:

The solution to the system of equation is x ≤ –4 and x > 4
<h3>Compound inequality</h3>
Given the inequality expression
2x ≤ –8 or 3x + 1 > 13
Solving individually
2x ≤ –8
Divide both sides by 2
2x/2 ≤ –8/2
x ≤ –4
For inequality 3x + 1 > 13
3x > 13 - 1
3x > 12
x > 12/3
x > 4
Hence the solution to the system of equation is x ≤ –4 and x > 4
Learn more on inequality here: brainly.com/question/24372553