Delaney wants to start saving money to buy a 3-D printer. If she needs to save at least $300.00 to pay for it and has decided to save $15.00 per week from doing chores around the house. Which inequality can be used to find how many weeks will it be before she can purchase the 3-D printer?
 15x\geq 30015x≥300
 \frac{x}{300} \geq 15 
 300
 x
  
 ≥15
 15x \leq 30015x≤300
 \frac{x}{300} \leq 15 
 300
 x
  
 ≤15