A store bought a pair of shoes for $50 and then sold them for $80. What percentage was the markup?

Which expression is equivalent to 2^4y^3

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

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?