Hi i have two questions: is quadrilateral efgh a rectangle?

coordinates;
e ==> (6,6)
f==> (14,0)
g==> (7,-9)
h ==> (-1,-3)

second question:
is quadrilateral qrst a rhombus?

coordinates:
q ==> (3,9)
r==>(9,8)
s==>(3,3)
t==>(9,2)

$97520

step-by-step explanation:

add 6% to the value she got from selling the house.

check above link.

graphically?   well, you graph them both, the solutions is where they both intersect each other, since there are two solutions, meaning they will meet twice, or namely the linear will run into the quadratic curve twice, and where they meet, those x,y coordinates are the solutions to the system.

4

step-by-step explanation:

im pretty sure it's 4 beacsue 8/2 equals 4