Question

Please Explain This Function out for me :)
f(s) =10 (s-65)+75

Answer 1

f(s) = 10(s - 65) + 75
f(s) = 10(s) - 10(65) + 75
f(s) = 10s - 650 + 75
f(s) = 10s - 575

Answer 2

most of the time it saids that s= a number.