What is 3c-9d+7c+5d tell me some one i need to know it now

Charles is on a 8 1/2 mile bike ride. he stops for a rest after he’s gone 5 2/5 miles. how much farther does he still have to go?

Drag the tiles to the boxes to form correct pairs. not all tiles will be used. match each set of vertices with the type of quadrilateral they form

Whit h equation best represents this situation the number 98 increased by an unknown number equal to 120