What is a variable in an expression?
(Mathematics)

Jacks bank statement shows an account balance of -$25.50. which describes the magnitude, of size, of the debt in dollars

Damon makes 20 cups of lemonade by mixing lemon juice and water. the ratio of lemon juice to water is shown in the tape diagram. lemon juice\text{lemon juice} lemon juice water\text{water} water how much lemon juice did damon use in the lemonade? cups

Drag each equation to the correct location on the table. for each equation, determine the number of solutions and place on the appropriate field in the table.