Your friend says that the solutions to the inequality 8x - 18X 30 are xs-3. Solve the inequality correctly. What error did your friend make

How do i do this activity, is appreciated

Marquise has 200 meters of fencing to build a rectangular garden. the garden's area (in square meters) as a function of the garden's width w w (in meters) is modeled by: a ( w ) = − w 2 + 1 0 0 w a(w)=−w 2 +100w what side width will produce the maximum garden area? meters

How do i take any fraction and make it into a decimal or percentage?