Two mechanics worked on a car. the first mechanic worked for 5 hours, and the second mechanic worked for 15 hours. together they charged a total of $1400. what was the rate charged per hour by mechanic if the sum of the two rates was $130 per hour

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?

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Determine which postulate or theorem can be used to prove that lmn =nmo