Which of the following can be used to find the absolute value of 4 - 7i?

Use the numbers in the multiplication equation 45 x 1/9 =5 to write a division equation involving division by a fraction.

Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?

I’m not good at math can i have ? ?