Answer:
Option A.
Step-by-step explanation:
The given expression is
\(3a+6b\)
We need to find the value of given expression when a=5 and b=-2.4.
Substitute a=5 and b=-2.4 in the given expression.
\(3(5)+6(-2.4)\)
\(15+(-14.4)\)
It can be written as
\(15-14.4\)
\(0.6\)
Therefore, the value of given expression is 0.6 when a=5 and b=-2.4.
