He paid 3.19 per gallon both times......first time he bought 12.53 gallons....next time he bought 11.86 gallons
so ur expression is : 3.19(12.53 + 11.86)
The first answer is 40 second 65 third 56 and then fourth 90
X+ 4? idk I don't really understand the question...
4.76 rounded to one decimal place is 4.8~
I will try to get back to you a little later
