31a+127+48a a=4; 10

To evaluate the expression \(31a + 127 + 48a\) for \(a = 4\) and \(a = 10\), we first combine the like terms in the expression.

The expression can be simplified as follows:

\[ 31a + 48a + 127 = (31 + 48)a + 127 = 79a + 127 \]

Now we can evaluate the expression for the given values of \(a\).

1. For \(a = 4\):

\[ 79(4) + 127 = 316 + 127 = 443 \]

2. For \(a = 10\):

\[ 79(10) + 127 = 790 + 127 = 917 \]

So, the values of the expression \(31a + 127 + 48a\) are:

• For \(a = 4\): 443
• For \(a = 10\): 917