If that is all it gives for the answer, then it is saying that x can be all numbers less than 3 except -2. So for interval notation it will be (-∞,-2),(-2,3). You also use the parenthesis instead of brackets because the number is not included in the answer.
Answer:

Step-by-step explanation:
From the question we are told that
5% solution of dextrose sugar in water
20% solution of dextrose in
100 milliliters of distilled water water
Generally in mathematically solving we call A the amount of D20W added
Since 20% of dextrose is needed

Total quantity after addition (100+x)
for DW5% total solution is


Mathematically




Therefore the required quantity 
Answer:5 million
Step-by-step explanation: Because 300 thousand is below 500 thousand so if its below 500 thousand it cant round up it rounds down.
Its 4 plus i square root of eleven
Answer:
B, y = 4x + 1
Step-by-step explanation:
to get it into y- intercept form we need to write it in the form y = mx + b
-8x = 2 - 2y, move 2y to the other side and -8x to the other side they both become positive.
2y = 8x + 2, dividing each by 2
yields y = 4x + 1
Hope this helps