(12+8)\ 5 + 15=19... this solution works because 12+8=20.. 20/5=4 and then 4+15=19
D, E and F will lie on the line
Option D: 14 is the right answer
Step-by-step explanation:
In order to find the value of given expression we have to put the given value for f in the expression
Given expression is:

We have to find the value of expression on f=3
So,
putting f=3 in expression

The value of given expression at f=3 is 14
Hence,
Option D: 14 is the right answer
Keywords: expressions, variables
Learn more about expressions at:
#LearnwithBrainly
F=2 so multiply the x and y axis.