There were 60 seventh grade students who signed up for soccer tryouts last year. This year, 48 seventh graders signed up for tryouts. What is the percent decrease in the number of students from last year to this year?

Which is the equation of a line perpendicular to the line with the equation 3x+4y=8

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Could somebody me with this radical simplification?