What is the x meaning x/5 =2.3

Ill mark the brainliest if you me with the these three questions 7,8,9

Sherrie is baking a pie for her family. she leaves the room and comes back to 35% of the pie having been eaten before she can put the topping on. how much 1 square inch strips of dough will she need for the top, now that a portion is missing? round your answer to the nearest while nimber.

Graph the line y=4/3 x+1 . use the line tool and select two points on the line.