Caleb wants to find 15 × 4. Which steps show a method for solving this problem? A. 15 × 4 = 4 × 15 = (4 ×1) + (4 × 5)
B. 15 × 4 = 4 × 15 = (4 +1) × (4 + 5)
C. 15 × 4 = (10 +5) × 4= (10 +4) × (5 + 4)
D. 15 × 4 = (10 + 5) × 4 = (10 × 4) + (5 × 4)

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.