Answer:
7
Step-by-step explanation:
[tex]m(x) = \frac{5}{4} x + 2 \\ plug \: x = 4 \\ m(4) = \frac{5}{4} \times 4 + 2 \\ \\ m(4) = 5 + 2 \\ \huge \red{ \boxed{ m(4) = 7}} \\ [/tex]
