Acertain store is advertising this deal: “rent a tv for only $10.50 a week.” how much is this a year? (there are 52 weeks in a year.)

Rent of a TV for one year would be $546.

Step-by-step explanation:

A certain store is advertising this deal :

"Rent a TV for only $10.50 a week."

We have to calculate the rent for a year.

As we know there are 52 weeks in a year.

∵ Rent of a TV for one week = $10.50

∴ Rent of a TV for one year = 10.50 × 52

                                             = $546.00

Rent of a TV for one year would be $546.

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.

c. (3,2,6) is the answer.