What's 4/6 + 5/8 ? can u write it out so i can show my work?

Which is the completely factored from of xy^3-x^3y

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?

Given: circle o, cd is diameter, chord ab || cd. arc ab = 74°, find arc ca.