I need some help I’m struggling

Isee the amount was $90.00 then reduced to $75.00 , what is the percent ?

Drag the tiles to the correct boxes to complete the pairs. not all tiles will be used. the heights of the girls in an advanced swimming course are 55, 60, 59, 52, 65, 66, 62, and 65 inches. match the measures of this data with their values.

Which system of linear inequalities is represented by the graph?