Jesse received $50 as a gift to buy what she wants. She goes to the mall and falls in love with a novel that costs her $7. Then she went to lunch because she was very hungry and spent twice as much as the novel cost her. How much money did Jesse have left after going to the mall? Think carefully first, then make a decision:
Jesse bought a novel for $7. She then bought lunch for twice the value of the novel, so lunch cost her $7 x 2 = $14. To find out how much money she has left from her gift she must know the total amount she spent $7 + $14 = $21. Her gift was $50, so she was left with $50 - $21 = $29. So, the answer is 29.