Can someone please help me with all 5 of these questions? You don't have to answer all 5 but I would appreciate it if you answered some. I will give brainliest and 11 points to whoever does help me with these questions.

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500

Describe a situation that you could represent with the inequality x< 17