The answers are as follows:
x ≥ 15
y ≥ 6
x + y ≤ 30
10x + 8y ≥ 250
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Answer:

Step-by-step explanation:
Let the number be x;
The product of 4 and the number will be;

The the square of the number is given as;

Taking the difference of both expressions above;

Factor out the common term:

Hence the difference between the product of 4 and a number and the square of the number is 
Answer:
C
Step-by-step explanation: 36 is the height. Minus 4 is 32. So ye...
Answer:
-5 because the number is before zero which irrational number
The measure of angle 2 is 129 degrees