PLS PLS PLS PLS HELP! Brainliest! Due in 15 mins! Please!

f(1)=−6
f(2)=−4
f(n)=f(n−2)+f(n−1)
f(3)=?

Lv beethoven software supplies customized software to a managed healthcare system. lv beethoven software's costs for the software is $1,723,000. lv beethoven software sells the software to the healthcare system for $3,816,981.10. overhead expenses are estimated at 47% of the selling price. what is lv beethoven software's net profit to the nearest dollar?