Evaluate a(a-b); use a=3, and b=1

Match each inequality to the number line that represents its solution

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.

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers