A student read 3/16 of a book one week. 3/20 of the same book the next week, and another 15/68 the following week. How much of the book was read overall

(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

what graph

step-by-step explanation:

hint: which coefficient is a multiple of 360°?

step-by-step explanation: