Which properties justify the steps taken to solve the system? {3x−4y=92x+8y=6 drag the answers into the boxes to match each step. 6x−8y=18, 2x+8y=6 8x = 24 x = 3 3(3)−4y=9 9−4y=9 −4y=0 y = 0

Sole with work in 10 years, the average number of hours of tv watched per week by teenagers dropped from 23.9 to 21.4. find the percent of change.

Marco has $38.43 dollars in his checking account. his checking account is linked to his amazon music account so he can buy music. the songs he purchases cost $1.29. part 1: write an expression to describe the amount of money in his checking account in relationship to the number of songs he purchases. part 2: describe what the variable represents in this situation.

In a singing competition, there are 150 participants. at the end of each round, 40% of the participants are eliminated. how many participants are left after n rounds?