What is the sum of the measurements of all the angles in a polygon with k sides?

Write two subtraction equations that are equivalent to 5 + 12 = 17.

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?

Can some one explain this i got sent this. is this a threat i’m scared