Lisa is cooking muffins, the recipe calls for 7 cups of sugar. She has already put in 2 cups. How many more cups does she need to put in? I need this in a equation.

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then,the two had the same amount of money. how much money did each have originally?

If a company produces x units of an item at a cost of $35 apiece the function c=35x is a of the total production costs

Dylan is evaluation the expression 13+19+7+10 at one step in his work, dylan rewrites the equation as 13+7+19+10 which property of addition must dylan have used when he evaluated the expression?