Assume that 70% of teenagers who go to take the written drivers license test have studied for the test. of those who study for the test 95% pass; of the those who do not study for the test, 60% pass. what is the probability that a teenager who passes the written drivers license test did not study for the test?

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?

Find the greatest common factor of the polynomial: 10x^5+15x^4-25x^3 10x^5 x^3 5x^3 5

Find the difference (8ab+a+2) - (3ab+6)