Answer:
The first one is correct.
Step-by-step explanation:
-3.5 is inside of the shaded area of the line.
I hope this helps.
Circumference = 2pi * r
So
3pi = 2pi r divide away pi
3 = 2 r
(3/2) = r = 1.5 m
Area = pi ( r^2) = pi (1.5)^2 = 2.25 pi m^2 ≈ 7.07 m^2
cited from web2.0calc
She got back $6.50.
explanation -
30 x 1.45 = 43.5
50 - 43.5 = 6.50