Two lines L1 and L2 pass through the point of intersection
2y = x-13 and 3y+x+12=0 L1 passes through P(-4, -7 ) and
L2 is perpendicular to 2x - 5y=4.
find the acute angle between L1 and L2.

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.