E=4.335∙〖10〗^6 J Can't figure out the answer

Tamera puts 15/4 gallons of gasoline in her car. which mixed number represents the gallons of gasoline? a) 2 3/4 gallons b) 3 1/4 gallons c) 3 3/4 gallons d) 4 1/2 gallons answer it's worth a lot of points!

Question 5 spring semester final exam math evaluate

Which of the following is the explicit rule for a geometric sequence defined a recursive formula of a -5a for which the first term is 23?