What is the absolute difference between the sum of the first 10 positive multiples of 5 and the sum of the first 10 positive, even integers?

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?

Q1 how many whole numbers less than 1000 can be written as a product of 3 consecutive whole numbers? a)10 b)11 c)15 d)21 q2 how many whole numbers between 5000 and 6000 consist of four different digits that decrease from left to right? a)3 b)10 c)69 d)120

Can random samples and proportional reasoning be used to determine precise information about a population? explain