Use the properties of operations to subtract (p - 3) - (2.4 + 2p)

O - p + 5.4

O 3p - 5.4

O - p - 5.4

p - 5.4

To simplify the expression (p - 3) - (2.4 + 2p), we can distribute the negative sign to both terms inside the second parentheses:

(p - 3) - 2.4 - 2p

Next, we can combine like terms:

p - 2p - 3 - 2.4

To combine p and -2p, we subtract them:

-p - 3 - 2.4

Finally, we can combine the constants:

-p - 5.4

Therefore, the simplified expression is -p - 5.4.