A written contract is not legally binding until . a.
money is exchanged
b.
it is signed by all parties involved
c.
all requirements of the contract have been fulfilled
d.
it is signed by all parties involved and notarized by an authorized notary official

B mark me brainliest plz

Step-by-step explanation:

answer: b.

step-by-step explanation:

the y coordinate for point b is 0, and answer b is the only one with that y coordinate.

answer: bearing in mind that a rectangle has a perimeter of length + length + width + width.

step-by-step explanation:

p = perimeter

l = length

x=width

p = 2l + 2x

p = 2(l+x)     < ==== perimeter of the base of the box.