there are two calculus classes at your school. both classes have a class average of 75.5. the first class has a standard deviation of 10.2 and the second has a standard deviation of 22.5. how do the classes compare?

question 3 options:

they are about the same.

the second class has higher grades than the first.

the first class' scores are closer together and the second's score are more spread out.

the second class' scores are closer together and the first's score are more spread out.

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. solve this quadratic equation using the quadratic formula. 2x2 - 2x=1 need asap

Your food costs are $5,500. your total food sales are $11,000. what percent of your food sales do the food costs represent?