Jon had put $5 in the bank. He was getting Interest from the bank (the bank was paying him the longer he kept his money in the bank) it was $3. Some time went by and he now had $22.
b = 9 (HE GOT $9 A WEEK! BUT YOU TAKE AWAY 5 BECAUSE HE PUT THAT MONEY IN NOT THE BANK)
The correct answer is A $152.50 if you add up all of the numbers then divide by the total amount of numbers then you have your answer also known as the mean of the data