Solve the system of equations using substitution.
y= -3x + 5
5x- 4y = -3

Mickey needs to cut pieces of ribbon that are each 1 meter long tie onto balloons. if he has 8 pieces of ribbon that are each 1 dekameter long. how many 1 meter pieces of ribbon can he cut

Write an inequality and solve each problem.for exercises 11 and 12, interpret the solution.

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?