The time it takes Javier to walk to school and his walking
k to school and his walking rate are
inversely proportional. If it takes Javier 12 minutes walking at 3 miles
per hour, how long does it take walking at 4 miles per hour

Geometry ? i don't know how to do any of these.

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.

Solving systems of linear equations: tables represent two linear functions in a systemöwhat is the solution to this system? 0 (10)0 (1.6)0 18,26)0 18-22)