Step-by-step explanation:
1) A number <em>m</em> is at least four
<em>m ≥ 4 ['at least' = ≥ symbol]</em>
<em />
2) 4x ≤ 20x; x=2
4(2) ≤ 20(2)
8 ≤ 40
[Im not sure if this is a solution or and inequality :/ ]
3) x < 5
--> On the line, draw the number 0, and the number five. 'x < 5' also means 'x is less that five.' So, draw a dot over the line before 5, and make an arrow going to the left of the page,
<-----------------------------------o 5
<---|---|---|---|---|---|---|---|---|---|---|---|---|---|--->
0
Hopefully this helps! :)
Answer: 
Step-by-step explanation:
I hope you mean y = x² - 12 and not y = 2x - 12.
You switch the y and x variables:
x = y² - 12
And solve for y:
x + 12 = y²

Answer:1:1000
Step-by-step explanation:
It’s 1:1000 because compared to the other one the height of the model would be 9.3 centimeters if 1:1000 was the scale of the model
Answer:
x < -24(option
Step-by-step explanation:
-¼x - 12 > -6
Add 12 to both sides
-¼x - 12+12 > -6+12
-¼x > 6
Divide both sides by -¼
x < 6 ÷ -¼
Please note that the inequality sign changes when divided by negative (minus). This is a rule in inequalities.
x < 6 × -4
x < -24
I hope this was helpful, please mark as brainliest