15.) 500 people were surveyed about their favorite type of pet. 55% of the people said "dog", 1/10 said "cat", 0.3 said "bird", and the rest said "other". How many people
responded "other"?

(n^3 - n)

= n(n-1)(n+1)

since it is divisible by 3 and 2 ,because it is a multiple 3 consecutive number

if, n-1 is odd then n+1 is also odd, then it is a multiple of 9

but if, n-1 is even then n+1 is also even, then it is a multiple of 4

so, largest multiple = max(9*2, 4*3) = max(18, 12) = 18

this is not the answer this is just a question. is this middle school math?

step-by-step explanation:

answer: 1 + 1 = 11

step-by-step explanation: