What is the value of 1/2^-² x^-³ y^5 for x=2 and y=-4
a. 16
b. -4
c. -1/32
d. -16

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

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?

Express in the simplest form: (x^2+9x+14/x^2-49) / (3x+6/x^2+x-56)