Luna made herself an ice cream cone. She used 1/4 of the container of ice cream. Her brother made an ice cream cone as well. He used 3/8 of the container of ice cream for his cone

How do you solve a question like 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.

Helena lost her marbles. but then she found them and put them in 44 bags with mm marbles in each bag. she had 33 marbles left over that didn't fit in the bags.