Lord of all, in this problem, three pairs of numbers are connected through a mathematical operation to a common answer. What is the missing number? 4,5,6, 10, 12,15

8

Step-by-step explanation:

Hi, to answer this question we have to analyze the sequence given:

4, 5, 6, 10, 12, 15

So, the rule of the sequence is that at the third time adding values  , we are adding a unit more:

The missing number is 8.

Feel free to ask for more if needed or if you did not understand something.

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!