HELP i think i have covîd 19 because i’ve been lazy, my head has been hurting a lot, my nose is runny, my eyes blurry, my stomach hurting, coughing, but I don’t wanna tell my parents. and i can’t go to the doctors since i dont have medicare

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.

Reflect the point (7,0) across the y-axis

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?