Please help ASAP If A{X1, Y1), B(X2Yz), C(x3, y3), and D(x4, y4) form two line segments, AB and CD, which condition needs to be met to prove ABI CD?

Imagine a new pasture with grass growing on it. every day after the seeds have germinated, the number of blades of grass in the pasture triples. after 18 days, the entire pasture is completely covered in grass. how many days did it take for the pasture to be one-third covered in grass?

Three times the sum of a number and seven is negative thirty-six. what is the number?

What are the values of each variable in the diagram below?