13. what is the value of x?
(enter your answer as an exact value)

Will give brainliest b. describe the function over each part of its domain. state whether it is constant, increasing, or decreasing, and state the slope over each part.

In a sale there is 25% of all prices a chair costs £45 in sale how much was it before the sale

Kelli swam upstream for some distance in a hour.she then swam downstream the same river for the same distance in only 6 minutes.if the river flows at 5km/hr, how fast can kelli swim in still water?