A plumbing company charges a $25 flat fee to go to your house, plus $12 an hour. How many hours does the plumber have to

work to make at least $85?

If kn = 9 cm, mn = 21 cm, rs = 42 cm, and ps = 18 cm, what is the scale factor of figure klmn to figure pqrs?

Can someone me i’m confused. will give brainliest and a whole bunch of points

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?