Carmen trains 2 dogs at a time to roll over and to fetch . if rolling over takes 10.3 min and fetching takes 0.25 min . which expression determine how many days to train 4 dogs 4×(10.3+0.25) or
[2×(10.3 +0.25)]×2 or 2 x (10.3+0.25)

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.