1. In each expression below, identify the coefficient, constant, and variable. a. 7x + 9
b. 6y - 5
C. 4.5 - 2.72

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

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?

Which expression shows the sum of the polynomials with like terms grouped together