Millie received a $15 tip on a meal that cost $65. what percent of the meal cost was the tip?

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23.07%

Step-by-step explanation:

We have given that the cost of the meal = $65

The tip cost = $15

To find the percent of the meal cost was the tip, we need to divide the tip cost by meal cost and then multiply with 100.

The percent of the meal cost was the tip is given by :-

Hence, the tip is 23.07% of the meal.

3. parallelogram

step-by-step explanation:

we turn each of our sides into direction vectors

ab=b-a=(3 - 7, 1 - 0) = (-4, 1)

bc=c-b=(1,6)

cd=d-c=(4,-1)

da=a-d=(-1,-6)

we see how the opposite sides have negated direction vectors; this is characteristic of a parallelogram.   we have congruent sides ab=cd and bc=da with unequal lengths because 1^2+6^2 is different from (-4)^2+1^2.   so it's not a square or a rhombus.  

we check the dot product of direction vectors of adjacent sides.   we have

ab dot bc = -4(1) + 1(6) = 2

that's not zero so the sides are not perpendicular.   we've ruled out rectangle.

the direction vectors indicate two pairs of congruent parallel sides, so we choose parallelogram over trapezoid.