She needs at least 130 points, so 130 - 75 (that she is earning from the sign up) = 65 points.
65 : 5,5 = 11,81 ≈ 12
So she has to sign up and visit he movie theatre at least 12 times to earn a movie ticket.
round to the nearest
hundredth of milligram : 4.27
tenth of milligram: 4.3
milligram : 4