Which of the following are true?
I. There is always a treatment in an experiment
II. An observational study is one type of experiment
III. Sample surveys are experiments
O I only
Oll only
O II and Ill only
O I and III only

Ac contractor is building a new subdivision outside of the city. he has started work on the first street and is planning on the other streets to run in a direction parallel to the first. the second street will pass through (-2,4) find the equation of the location of the second street in standard form. a.2x+y=2 b. x-y=2 c.2x+y=2 d.x+y=2

F(n + 1) = f(n) – 8. if f(1) = 100, what is f(6)?

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?