To figure this use the density equation D=mass/volume which is 47/15=3.13
I believe it would be Y=1.5x I say this because x represents the seconds and they can type 1.5 words Per second so you would be 1.5x and Y is the number of words which would be the solution at the end of the problem, this is why you put Y=
Order the numbers by magnitude (size) and watch the negative signs:
-12, -1, 0, 2, 15, 18
Answer: C
we are given
S=80
RS=2
we can use tangent formula


now, we can find QR

we will get
...........Answer