Answer:
C. y<3
Step-by-step explanation:
We are required to determine the solution set of the inequality

Step 1: Add 9 to both sides

Step 2: Divide both sides by 15

The solution set of the given inequality is: y<3.
The correct option is C.

Then rearrange the equation to get 10x on the same side as 25.
Keep in mind, once bringing to the other side, your constant and variable will switch to a negative or positive for example,
-10x will become +10x. Another example is +20x will become -20x once brought to the other side.
Continuing on once rearranged, your equation will look like,

Then we have to get rid of the 2 on 2y so you will have to divide both sides by 2.

Dividing both sides by 2, you will get,

The reason why we don't divide and rather keep the 25/2 (25 divded by 2) is because 25 divided by 2 will give an answer with a decimal and that we don't want a decimal in our equation so we just keep it the way it is. If you ever get a decimal, make sure you keep it in its fraction form.
Answer:
the sides of the triangle are 4 cm , 8 cm , 20 cm
The number is 225.
It square roots are +15 and -15 .
They are 30 apart on the number line.
Answer: 2cd - 34c + 4d - 7