Vanessa wanted to buy chocolate online. The Chocolatier A offers 2 pounds of chocolate for $32.50, while the Chocolatier B offers 2 pounds of the same chocolate for $35.00. Which
company is offering the lowest price per pound?
Both companies have the same price
Chocolatier B
Chocolatier A

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.

Ineed i been stuck on this question since yesterday

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?