9 + x > (equal to or greater than) 15
6 more students need to sign up because 15-9=6
Answer:

Step-by-step explanation:
A regular polygon is a shape with equal sides and angles. Because of this, we can write the following equation to set two sides equal to each other:

Solving, we will get a in terms of b:

Now we can substitute a for (b+3) into our equation:

Therefore, the length of each side of this polygon is
.
Since the perimeter of the polygon consists of all five sides, the perimeter is:

The answer is C.
90/105=6/7
Hope this helps!
Answer:
x = 7; y = 3
Step-by-step explanation:
I used the Trial and Error Method and found that x = 7 and y = 3
=> 7 + 3 = 10
=> 10 = 10. ✔
=> 7 - 3 = 4
=> 4 = 4. ✔
Therefore, x = 7 and y = 3
Hoped this helped.
Answer:
Step-by-step
Create an algebraic equation. 6N-12. 6x1 - 12 = -6. So -6 is the first term.
6x10-12 = 48. So 48 is the 10th term
Hope it helps
Sorry if it’s unclear