Answer:
44
Step-by-step explanation:
1) Substitute 8 as x in f(x)=6x-4:
f(x) = 6(8)-4
2) Multiply 6 and 8:
f(x) = 48-4
3) Subtract:
f(x) = 44
f(x) is 44
f(x)=48-4
f(x)=44