Louis, a high school senior, is known by his friends for generally having good luck. everything falls his way, including an academic scholarship and a great part-time job delivering pizzas. he's saving for a car to drive at college. some guys at school heard about a group out west pooling their money for raffle tickets and winning big. they've now started doing that for weeks, with no results. they ask louis to join them. five bucks a week for a huge payday. he's tempted. you are his friend; talk him out of it.

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.

its 8

step-by-step explanation:

the final price would be 29.6925

step-by-step explanation:

39.59 minus 25% equals 29.6925

$9.41

step-by-step explanation: