Question

Four more than a number is no more than thirteen

Answer 1

Four more than a number = x + 4;
No more than means using < in the equation;
So
`x+4\ \textgreater \ 13` is your equation.

`x+4\ \textgreater \ 13\\ x\ \textgreater \ 9`

Answer 2

if x+4>13 then it would be x>9