Four students, Jackson, Chloe, Lydia, and Noah, line up one behind the other. How many different ways can they stand in line?

What is the first step of an indirect proof of a number that is divisible by two

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.

Rationalize the denominator- 12x/√x-10