Final answer:
The expression a(2.15) is equal to 16.34 for a = 7.6.
Step-by-step explanation:
To evaluate the expression a(2.15), we substitute the value of a with 7.6.
Therefore, the expression becomes 7.6(2.15).
Multiplying 7.6 by 2.15 gives us the answer:
=> 7.6(2.15)
= 16.34