Are the following two lines parallel, perpendicular, or skew? L1 : x = 1 + 2t, y = t, z = 1 + 4t L2 : ~r = h3, 1, 5i + th4, 2, 8i.

You are cycling around europe with friends. a cycling festival is starting soon in barcelona. it will take 4.5 hours to cycle there. how many minutes in total is this?

Ricky takes out a $31,800 student loan to pay his expenses while he is in college. after graduation, he will begin making payments of $190.66 per month for the next 30 years to pay off the loan. how much more will ricky end up paying for the loan than the original value of $31,800? ricky will end up paying $ more than he borrowed to pay off the loan.

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?