David wants to make scrapbooks with old family photos. An online scrapbooking company charges $12 for a basic book and $7 per page.
Meanwhile, a family friend is willing to make a scrapbook for $27 plus $4
per page. For a certain number of pages, the price would be equal. How
many pages would that be? How much would that cost?

no cos 29<31

Step-by-step explanation:$12+$7=$29 & $27+$4 =$31 so thare not the same amount

=

(^_^)

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.

answer: i can’t tell you that

step-by-step explanation: