please help me solve each question

3. Zachary plans to buy a $125 Mother's Day present for his mother, and the holiday falls on the second Sunday of May. He can afford to put the present on layaway with a 25% down payment and $18 a month after that. If payments are due at the beginning of each month. help Zachary determine when he should make his first monthly payment. (4 points: Part 1 .? 1 point; Part II - 1 point; Part III - 1 point; Part IV - 1 point) Part 1: How much will Zachary's down payment be? 71 Part II: How much will Zachary have left to pay after making his down payment? 4.5 Part III: Not including his down payment, how many monthly payments will Zachary have to make? 5625 Part IV: When should Zachary make his first monthly payment