What is the slope of the line that goes through (-1, – 7) and (3, 9)?

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Explain how you can find the missing fraction in 3 4/5 / (blank) 2 5/7. then find the missing fraction.

What is the equation of the line that is parallel to the line with the equation y= -3/4x +1 and passes through the point (12,-12)