Sets exercise: in a survey done in a college, it is found that 240 have laptop and 60% have palmtop. those who have palmtop also have laptop. if 20% do not have both then, i) find the numbers of students participated in the survey. ii) find the number of students who have laptop only.

Matt and brian were solving a system of equations. they both noticed that the two lines had the same slope. brian said that because each line in the system had the same slope, the two lines had to be parallel, which meant the solution to the system was "no solution" matt disagreed, and said they should also look at the y-intercepts before determining how many solutions there were. who is correct?

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

Afitness center has 2 membership plans one has a low dollar sign up fee of 15 dollars and costs 38 dollars per month to join. a second plan has a higher sign up fee of 78 dollars but a lower monthly fee of 31 dollars for what number of days of the month is the coat the same