If 95% of the scores on a test fall between 48 and 80 and are normally distributed. What is the mean score and the standard deviation of the scores? mean​

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

Look at triangle wxy what is the length (in centimeters) of the side wy of the triangle?

What is 74 round to the nearest ten