Problem
A recipe for baba ghanoush calls for twice as much olive oil as lemon juice. (1) Which expressions represent the amount of olive oil needed for 4 tablespoons of lemon juice? Choose ALL that apply. \[ 4 \cdot 2 \quad 4+4 \] (1) Write an expression to show the amount of olive oil in the recipe. Let \( j \) equal the number of tablespoons of lemon juice.
Solution
Step 1 ：j = 4
Step 2 ：\text{olive oil} = 2 \cdot j
Step 3 ：\text{olive oil} = 2 \cdot 4 = 8
