Asolution has an h+ concentration of 0.000316227. what is the ph of this solution to the nearest tenth

I’m really confused and need to learn this

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer

Data for the height of a model rocket launch in the air over time are shown in the table. darryl predicted that the height of the rocket at 8 seconds would be about 93 meters. did darryl make a good prediction? yes, the data are best modeled by a quadratic function. the value of the function at 8 seconds is about 93 meters. yes, the data are best modeled by a linear function. the first differences are constant, so about 93 meters at 8 seconds is reasonable. no, the data are exponential. a better prediction is 150 meters. no, the data are best modeled by a cubic function. a better prediction is 100 meters.