One bad grade, how will it effect colleges/future jobs and can I make a

living off it? Ok so I do well in school and I try really hard, I get all A's and B's besides math, which im in the standard class of algebra 2..I always get a's and bs but then c's d's or even es (fs in our school) in math. How will this effect me with colleges/future jobs. My dad always say I won't be able to go to college or make a living with these type grades,but their always A's and high b's besides math!
Ps: I'm in all standard classes/high english/high history