Answer: 4
Step-by-step explanation: To find the value of 8.4n - 3.2p when n = 2 and p = 4, we can substitute the given values into the expression and evaluate it step by step.
First, let's substitute n = 2 and p = 4 into the expression:
8.4n - 3.2p
= 8.4(2) - 3.2(4)
Next, let's calculate the products:
= 16.8 - 12.8
Finally, let's subtract the two values to find the final answer:
= 4
Therefore, the value of 8.4n - 3.2p when n = 2 and p = 4 is 4.