Im never using this website ever again if no one answers this question. hurry. ive offered brainliest and ive offered a lot of points but still no answer. i am begging.

Part a: If she earns $960 but spends $680 daily, then this means she will have $280 by the end of each day. Numerically, this would look like .

Part b: In order to start making a profit, she will need d days for it to exceed 52000. If she pays $280 per day, then we set up an inequality.

For her to start earning a profit, the following inequality must be true:

If you isolate b and divide both sides by 280, then the variable d will be 185.7, but this does not exceed 52000, so in order for it to be true, she must have 186 days to start making a profit.

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.

44

step-by-step explanation: