70x120 lots ,how much?

[TTPRODR]

im starting my advertising campaign next week and im going to start right on my subdivision i live in,houses range around 2500sqf and most lots are 70x120 how much should i charge for regular mowing job?
im in northeast,florida.

[Sweet Tater]

I just moved from Jax to Ms. Had a lawn service there doing my yard for about 5 yrs, they charged for 1/3 acre $35 and never went up. That was in Atlantic Bch