Answer:
25
Step-by-step explanation:
15 * 15 = 225
3 * 3 = 9
225 / 9 = 25
the answer is 25
So you multiple 15x15 which equals 225 then you multiply 3x3 which is 9
the you take 225 and divide it by 9 wich would then be 25................hope i helped