1. marquis and his family went out for dinner for his birthday. the cost of the meal including sales tax was $65.50. the family decides to tip 20% for the good service they received. how much did marquis' family pay for the tip on their meal? the tip for marquis' birthday meal was

Step-by-step explanation:

We know that:

The cost including sales tax: $65.50

Tip: 20% of the price.

So, to calculate how much did they pay for the tip, we just need to find the 20% of $65.50 by multiplying:

.

Therefore, the family gave 13.10 for tip on their meal.

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step-by-step explanation:

(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