Azoo train ride costs $4 per adult and $1 per child. on a certain day, the total number of adults (a) and children (c) who took the ride was 40, and the total money collected was $76. what was the number of children and the number of adults who took the train ride that day, and which pair of equations can be solved to find the numbers? 12 children and 28 adults equation 1: a + c = 40 equation 2: 4a – c = 76 12 children and 28 adults equation 1: a + c = 40 equation 2: 4a + c = 76 28 children and 12 adults equation 1: a + c = 40 equation 2: 4a + c = 76 28 children and 12 adults equation 1: a + c = 40 equation 2: 4a – c = 76

The accompanying normal probability plot was constructed from a sample of 30 readings on tension for mesh screens behind the surface of video display tubes used in computer monitors. does it appear plausible that the tension distribution is normal? the given probability is has a significant downward curve, so it is plausible that the tension distribution is normal. the given probability is has a significant downward curve, so it is not plausible that the tension distribution is normal. the given probability is quite linear, so it is plausible that the tension distribution is normal. the given probability is has a significant upward curve, so it is not plausible that the tension distribution is normal. the given probability is quite linear, so it is not plausible that the tension distribution is normal.