Admission for a play is $9 for adults and $5 for students. the first night, the box office sold twice as many adult tickets as student tickets. the second night, the number of each type of ticket sold was three times the number sold the first night. which expression can be used to determine the total amount of money received for sales of tickets on both nights? let a be the number of adult tickets sold and s be the number of student tickets sold.

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

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Find the area of a parallelogram with base 15 yards and height 21 2/3