75 is my answer and this is a guess so if its right tell me
X = 15
X + 90 = 7x
X = 7x - 90
X - 7x = -90
-6x = 90
Divide both sides by -6
X = 15
No it would be Pi *r *r because the r is to the power of 2
Answer:
what is the quistion
Step-by-step explanation:
