1/2(c+8) and c+8/2 are equivalent expressions true of false

`1234567890-=/*-qwertyuiop[]asdfghjkl; '\\zxcvbnm,./+ /

twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2

it goes right

it is impossible.