if a store is offering 20% discount on all items. is there a proportional relationship between the original price of an item and its price after the discount​

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.

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

Write an equation for the function that includes the points (2,100)and (3,100)