What is the simplest form of the expression (14.2a + 9.8b) – (13.1b – 0.2a) – (3.7a + 4.8b)?

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

Acredit card advertises an annual interest rate of 23%. what is the equivalent monthly interest rate?

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?