In the last 98 years, 100 billion crayola crayons have been made! in the last 98 years, average of how many crayola crayons have been made every minute?

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.