Question 4 Frank wants to buy a pair of boots priced at $49.69. If the
sales tax rate is 6 percent, which is the best estimate of the
tax on the boots?
Your answer-
o $2.40
o $3.00
o $4.00
o $6.00
o Clear answer
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(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

step-by-step explanation:

answer: it is 8

step-by-step explanation:

you know why its 8