What are the next three values in the following pattern: A,B,2,C,D,4,E,F,16,G,H,256,

Kelly wants to find out the total value of the change she collected in her piggy bank. She first separated the coins according to their value. She had 5 pennies, 25 dimes, 15 nickels and 3 quarters. Which of the following equations shows how to find