Amachine paints 340 toys in 45 minutes. write a ratio that can be evaluated to find the unit rate per hour.

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Find the solution of this system of equation -7x+y=-20 9x-3y=36

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.