The measure of 7x + 27 depends on the value of x.
18
abc = 38
Either can be greater, depending on the exact angles involved.
length plus width equals perimetre
51
4mg plus 2.5ml. There is no way to get a measure of mass converted to a measure of liquid and vice versa.
The measure of 7x + 27 depends on the value of x.
protons plus neutrons
18
abc = 38
That totals 180.
$80/hour, plus parts.
pH
need the pic or more info... what is angle B
thermal measuring device
It depends entirely on the value of x.