The answer is 50. I have the same question and it makes no sense. The r= and the d= are supposed to have answers, but I’m not sure how you get them
You are moving in the path of a parabola.
The conic section is parabolic - the street is the directrix and the mailbox is the focus.
Given equation is

In general solution of

is

and

So the solution of given equation is

and

Now difference between them is 30.
So we can write




On squaring both side

In math, "of" usually means "times".
2/3 x 3/4 = 6/12 = <em>1/2 pound</em>.
Answer:
9^7
Step-by-step explanation: