I am having trouble with (a). Pls help

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!

Xto the second power plus 14x plus 48. what are the factors? we are doing factoring trinomials with a=1

Through: (-3,-3) parallel to y= 7/3x+3